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CBSE Class-11 Syllabus 2018-19 (Informatics Practices)

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CBSE Class-11 Syllabus 2018-19 (Informatics Practices)

1. Prerequisites

Since a lot of students join CBSE schools from schools run by a state board, we are not assuming ny pre-requisites for this course other than basic mathematical skills. However, it will be helpful if the student has a basic knowledge of Computer Applications 1 and 2.

2. Learning Outcomes

1. Basic computational thinking. Learn how to reason with variables, state transitions,conditionals, and iteration.
2. Notion of data types, and higher order data structures such as lists, and dictionaries.
3. Concepts of data handling: creating, managing and working with Data Frames using Python Pandas.
4. Structure of simple SQL queries.
5. Cyber safety.

Cource Structure :

SR.No Unit Marks
1.

Programming and Computational Thinking

30
2.

Data Handling

20
3.

Data Management

10
4. Society, Law and Ethics 10
5. Practical 30
  Total 100

4.1 Unit 1: Programming and Computational Thinking (PCT-1) (70 Theory + 60 Practical)

  • Basic computer organisation: describe a computer system and mobile system, CPU, memory,hard disk, I/O, battery, power, transition from a calculator to a computer
  • Familiarization with the basics of Python programming: a simple “hello world" program, process of writing a program, running it, and print statements; simple data-types: integer, float, string
  • Introduce the notion of a variable, and methods to manipulate it (concept of L-value and Rvalue even if not taught explicitly)
  • Knowledge of data types and operators: accepting input from the console, assignment statement, expressions, operators and their precedence.
  • Conditional statements: if, if-else, if-elif-else; simple programs: e.g.: absolute value, sort 3 numbers, divisibility.
  • Notion of iterative computation and control flow: for, while, flowcharts, decision trees and pseudo code; write a lot of programs: interest calculation, EMI, tax calculation (examples from GST), standard deviation, correlation
  • Lists and dictionary: finding the maximum, minimum, mean; linear search on a list of numbers, and counting the frequency of elements in a list using a dictionary.
  • Text handling: compare, concat, and substring operations.
  • Introduction to Python modules: creating and importing.

4.2 Unit 2: Data Handling (DH-1) (30 Theory + 20 Practical)

4.2.1. Introduction to Python Pandas

  • Introduction to data structures in Pandas: Series, and Data Frame
  • Operations on a Series: head, tail, vector operations
  • Data Frame operations: create, display, iteration, select column, add column, delete column
  • Binary operations in a Data Frame: add, sub, mul, div, radd, rsub
  • Matching and broadcasting operations
  • Missing data and filling values.
  • Comparisons, Boolean reductions, comparing Series, and combining Data Frames.

4.2.2. Transfer data between CSV files/SQL databases, and Data Frame objects.

4.3. Unit 3: Data Management (DM-1) (30 Theory + 20 Practical)

  • Relational databases: idea of a database and the need for it, relations, keys, primary key,foreign key;
  • Use SQL commands to create a table, keys, and foreign keys; insert/delete an entry, delete a table.
  • Basic SQL: select, project, and join; indexes, and a lot of in-class practice.

4.4. Unit 4: Society, Law and Ethics (SLE-1) - Cyber safety (10 Theory)

  • Cyber safety: safely browsing the web, identity protection, confidentiality, social networks, cyber trolls and bullying
  • Appropriate usage of social networks: spread of rumours, and common social networking sites (Twitter, LinkedIn, and Facebook) and specific usage rules.
  • Safely accessing web sites: adware, malware, viruses, Trojans
  • Safely communicating data: secure connections, eavesdropping, and phishing and identity verification.

Click Here To Download Full Syllabus (Informatics Practices New)

Click Here To Download Full Syllabus (Informatics Practices Old)

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GENERAL: 
Exam / Class: 

CBSE Class-11 Syllabus 2018-19 (Computer Science)

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CBSE Class-11 Syllabus 2018-19 (Computer Science)

1. Prerequisites

No major prerequisites are required for this course other than basic Mathematical skills. However, it
will be helpful if the student has a basic knowledge of Computer Applications.

2. Learning Outcomes

1. Develop basic computational thinking. Learn how to reason with variables, state transitions,conditionals, and iteration.
2. Understand the notion of data types, and higher order data structures such as lists, tuples,and dictionaries.
3. Appreciate the notion of an algorithm, and understand its structure, including how algorithms handle corner cases.
4. Develop a basic understanding of computer systems - architecture, OS, mobile and cloud computing.
5. Learn basic SQL programming.
6. Learn all about cyber safety.

Cource Structure :

SR.No Unit Marks
1.

Programming and Computational Thinking

35
2.

Computer Systems and Organisation

10
3.

Data Management

15
4. Society, Law and Ethics 10
5. Practical 30
  Total 100

4.1 Unit 1: Programming and Computational Thinking (PCT-1) (80 Theory + 70 Practical)

  • Familiarization with the basics of Python programming: a simple “hello world" program, process of writing a program, running it, and print statements; simple data-types: integer, float, string
  • Introduce the notion of a variable, and methods to manipulate it (concept of L-value and Rvalue even if not taught explicitly)
  • Knowledge of data types and operators: accepting input from the console, assignment statement, expressions, operators and their precedence.
  • Conditional statements: if, if-else, if-elif-else; simple programs: e.g.: absolute value, sort 3 numbers, and divisibility.
  • Notion of iterative computation and control flow: for, while, flowcharts, decision trees and pseudo code; write a lot of programs: interest calculation, primarily testing, and factorials.
  • Idea of debugging: errors and exceptions; debugging: pdb, break points.
  • Lists, tuples and dictionary: finding the maximum, minimum, mean; linear search on list/tuple of numbers, and counting the frequency of elements in a list using a dictionary. Introduce the notion of accessing elements in a collection using numbers and names.
  • Sorting algorithm: bubble and insertion sort; count the number of operations while sorting.
  • Strings: compare, concat, substring; notion of states and transitions using state transition diagrams.

4.2. Unit 2: Computer Systems and Organisation (CSO) (20 Theory + 6 Practical)

  • Basic computer organisation: description of a computer system and mobile system, CPU,
  • memory, hard disk, I/O, battery, power.
  • Types of software: application, OS, utility, libraries.
  • Language of Bits: bit, byte, MB, GB, TB, and PB.
  • Boolean logic: OR, AND, NAND, NOR, XOR, NOT, truth tables, De Morgan’s laws
  • Information representation: numbers in base 2, 8, 16, unsigned integers, binary addition
  • Strings: ASCII, UTF8, UTF32, ISCII (Indian script code)
  • Execution of a program: basic flow of compilation – program  binary  execution
  • Interpreters (process one line at a time), difference between a compiler and an interpreter
  • Running a program: Notion of an operating system, how an operating system runs a program,
  • idea of loading, operating system as a resource manager.
  • Concept of cloud computers, cloud storage (public/private), and brief introduction to parallel computing.

4.3. Unit 3: Data Management (DM-1) (30 Theory+ 24 Practical)

  • Relational databases: idea of a database and the need for it, relations, keys, primary key,oreign key; use SQL commands to create a table, keys, foreign keys; insert/delete an entry, delete a table.
  • SQL commands: select, project, and join; indexes, and a lot of in-class practice.
  • Basics of NoSQL databases - Mongo DB.

4.4. Unit 4: Society, Law and Ethics (SLE-1) - Cyber safety (10 Theory)

  • Cyber safety: safely browsing the web, identity protection, confidentiality, social networks,cyber trolls and bullying
  • Appropriate usage of social networks: spread of rumours, and common social networking sites (Twitter, LinkedIn, and Facebook) and specific usage rules.
  • Safely accessing web sites: adware, malware, viruses, Trojans
  • Safely communicating data: secure connections, eavesdropping, phishing and identity verification.

Click Here To Download Full Syllabus (Computer Science New)

Click Here To Download Full Syllabus (Computer Science Old)

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CBSE Class-11 Syllabus 2018-19 (Home Science)

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CBSE Class-11 Syllabus 2018-19 (Home Science)

Home Science as a discipline aims to empower learners by developing understanding of five different

  • areas namely:
  • Food and Nutrition
  • Human Development, Childhood Studies
  • Resource Management
  • Fabric and Apparel Science
  • Development Communications and Extension
  • The subject helps students to understand changing needs of Indian society, academic principles as well as
  • develop professional skills.This would make them competent to meet challenges of becoming a
  • responsible citizen.

Objectives:

The syllabus at Senior Secondary level develops an understanding in the learners that the knowledge and skills acquired through Home Science facilitates development of self, family and community. It endeavors to –

  • Acquaint learners with the basics of human development with specific reference to self and child.
  • Help to develop skills of judicious management of various resources.
  • Enable learners to become alert and aware consumers.
  • Impart knowledge of nutrition and lifestyles to enable prevention and management of diseases.
  • Inculcate healthy food habits.
  • Help to develop understanding of textiles for selection and care of clothes.
  • Develop skills of communication to assist in advocacy and dissemination of knowledge tocommunity

Cource Structure :

SR.No Unit No.of Period Marks
 

Introduction: Evolution of the discipline and its relevance to the quality of life

05 22
1.

Understanding oneself: Adolescence

55  
2.

Understanding Family, Community and Society

30 15
3.

Childhood 

40 18
4. Adulthood 50 18
  Total 180 70
  Practical 40 30
  Grand Total 220 100

Unit I: Understanding oneself: Adolescence 
 

Chapter-2 Understanding the self

A. „Who am I‟?
B. Development and Characteristics of the self
C. Influences on identity

  • Biological and physical changes
  • Socio-cultural contexts
  • Emotional changes
  • Cognitive changes

Chapter-3 Food, nutrition, health and fitness- Introduction, Balanced Diet, Health and  Fitness, Using basic food groups for planning balanced diets, Vegetarian  food guide, Dietary patterns in adolescence, modifying diet related behavior,  Factors influencing eating behavior, Eating disorders at adolescence.

Chapter-4 Management of resources - time, money, energy and space- Introduction,  Human and Non- Human Resources, Individual and shared resources,  Natural and community resources, Characteristics of Resources, Managing  resources, The management process.

Chapter-5 Fabric around Us- Introduction, Fibre properties, Classification of textile  fibres, Yarns, Fabric production, Textile Finishing.

Chapter-6 Media and communication technology- Communication and communication  technology, What is media? What is communication technology? 

Unit II: Understanding family, community and society 

Chapter-7 Relationships and interactions with „significant others‟: 

  • Family
  • School - peers and educators
  • Community and Society

Chapter-8 Concerns and needs in diverse contexts: Family, school, community and  society Key areas:
a. Health, Nutrition and Hygiene- Introduction, Health and its dimensions, Health care, Indicators of Health, Nutrition and Health, Nutrients, Factors affecting nutritional well- being, Nutritional problems and their consequences, Hygiene and Sanitation.
b. Work, Worker and workplace- Introduction, Work, Worker,Workplace.
c. Resource availability and Management- Time Management, Space Management. 

Unit III: Childhood 

Chapter-9 Survival, Growth and Development- Meaning, areas, stages in development.

Chapter-10 Nutrition, Health and Wellbeing- Introduction, Nutrition, Health and Wellbeing during infancy; Nutrition, Health and Wellbeing of preschool children; Nutrition, Health and Wellbeing of school- age children, Factors
that influence diet intake of pre-school age and school- age children, Healthy habits, Health & nutrition issues of school- age children. 

Chapter-11 Care and Education- Introduction, Infancy & early childhood years, Meaning of care & education, Who provides Early childhood care & education (ECCE)? Care and education during middle childhood years,
difficulties and nature of primary education.

Chapter-12 Our Apparel- Clothing functions and the selection of clothes, Factors affecting selection of clothing in India, Understanding children‟s basic clothing needs, Clothing requirements at different childhood stages,
Clothing for children with special needs

Click Here To Download Full Syllabus

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CBSE Class-11 Syllabus 2018-19 (Engineering Graphics)

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CBSE Class-11 Syllabus 2018-19 (Engineering Graphics)

The subject of 'Engineering Graphics' has become an indispensable tool for Engineers, Technocrats, Architects, Draftsmen, Surveyors, Designers and many other professionals in the recent times. Understanding of its fundamental principles and wider applications of the same in the above fields and many other daily life situations form the basis for the syllabus at Senior Secondary Stage.

Objectives:

  • The studyofthesubjectofEngineeringGraphicsatSeniorSchoolLevelaimsathelpingthe learnerto:
  • develop clear concept and perception of form, proportion andapplication.
  • develop the skill of expressing three-dimensional and two-dimensional objects into professional language and vice versa.
  • acquire the ability to readily draw neat sketches, often needed in "On-job situations".
  • developaclearunderstanding ofplaneandsolidGeometryandmachinedrawing soas toapply the same in relevant practical fields such as technology andindustry.
  • acquire speed and accuracy in use of drawinginstruments.
  • use technology (CAD) in developing isometric and orthographic projections of simple objects.
     

Cource Structure :

SR.No Unit No.of Period Marks
I

PLANE GEOMETRY
1. Lines, angles and rectilinearfigures
2. Circles andtangents
3. Special curves :ellipse,parabola,involute, cycloid,helixandsinecurve

16 38
II

SOLID-GEOMETRY
4. Orthographic-projections of points and line.
5. Orthographic projection of regular plane figures.
6. Orthographic projections of right regular solids.
7. Section of solid-figures

27 86
III

MACHINE DRAWING
8. Orthographic projections of simple machine-blocks
9. Isometric-projection of laminae (plane figures)
10. Development of surfaces

27 50
 

Practicals

30 30
  Total 100 240

Theory

PLANE GEOMETRY 
Printing English alphabets (capital and small) numerals in standard proportions.Unidirectional/aligned system of dimensioning as per SP: 46-2003 (Revised)

Unit 1: Construction of lines, angles and their divisions. Simple questions based on triangles, square, rhombus, trapeziums, regular polygons-pentagon, hexagon and octagon. 

Unit 2: Construction of circles, external and internal tangents of circles, inscribing, circumscribing circles in equilateral triangle, square, rhombus, regular polygons-pentagon, hexagon and octagon. 

Unit3: ConstructionofEngineeringcurves:
(a) Ellipse by concentric circles, intersecting arcs and intersecting lines.
(b) Parabola by intersecting lines and intersecting arcs.
(c) Involuteofacircle,cycloid,helixandsinecurve. 

SOLID GEOMETRY 

Unit 4: Methods of orthographic projections and dimensioning strictly as per SP: 46- 2003 revised conventions. Projectionofpoints,lines. 

Unit 5: Orthographic projections of Regular Plane figures - triangle, square, pentagon, hexagon, circle and semi-circle. 

Unit 6: Orthographic projections of right regular solids such as cubes, prisms and pyramid,(square, triangular, pentagonal and hexagonal), cones, cylinders, spheres, hemispheres and frustum of pyramids and cone when they are kept with their axis (a) perpendicular, to HP/VP (b) parallel to one plane and inclined to the other (c) parallel to HPandVP both. 

Unit 7: Section of solids under the same conditions mentioned above made by the horizontal, vertical and inclinedplanes. 

MACHINE DRAWING 

Unit 6: Orthographic projections of simple machine blocks.

Unit 7: Construction of isometric scale showing main divisions of 10 mm and smaller divisions of 1 mm each. Isometric projection (drawn to isometric scale) of figures such as triangles, squares, pentagons, hexagons, circles and
semi-circles with their surface parallel to HP or VP and its one side or diagonal or diameter should be either parallel or perpendicular to HP/VP. 

Unit 8: Development of the surfaces of following solids: 

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GENERAL: 
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CBSE Class-11 Syllabus 2018-19 (Biotechnology)

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CBSE Class-11 Syllabus 2018-19 (Biotechnology)

An unprecedented growth of human knowledge in the field of Biological Sciences coupled with equally significant developments in the field of technology have brought significant changes into existing social and economic systems. The emerging field of Biotechnology is likely to further enhance the applications of Science and Technology in the service of human welfare. Modern Biotechnology processes encompass a wide range of new products such as antibiotics, vaccines, monoclonal antibodies and many more. Furthermore, developments in recombinant DNA technology have yielded numerous new useful products in the fields of healthcare and agriculture. The present syllabus takes care of all these aspects. Due emphasis has been laid on familiarizing the learners with the fundamental concepts, basic techniques and their applications. It is expected that the knowledge gained through the study of different topics and the skills acquired through the prescribed practical work will make the learners competent to meet the challenges of academic as well as professional courses after studying the subject at senior secondary stage.

Objectives :

  • The broad objectives of teaching Biotechnology at senior secondary level are:
  • To help the learners know and understand basic facts and concepts of the subject at elementary stage.
  • To expose the students to different basic processes and basic techniques used in Biotechnology.
  • To familiarize the learners to understand the relationship of the subject to health, nutrition,environment, agriculture and industry, etc.
  • To develop conceptual competence in the learners so as to cope up with professional courses in future career.
  • To acquaint students with different applications of Biotechnology in everyday life.
  • To develop an interest in students to study biotechnology as a discipline.

COURSE STRUCTURE :

Unit Title No.of Period Marks
I

Biotechnology: An overview

20 05
II

Molecules of Life

50 20
III

Genetics and Molecular Biology

50 20
IV

Cells and Organisms

60 25
 

Practicals

60 30
  Total 240 100

Unit-I Biotechnology: An overview 
Chapter 1: Biotechnology: An Overview

Historical Perspectives, Technology and Applications of Biotechnology, Global market and Biotech Products, Public Perception of Biotechnology, Biotechnology in India and Global Trends

Unit-II Molecules of Life 
Chapter 1: Biomolecules: Building Blocks

Building Blocks of Carbohydrates - Sugars and Their Derivatives, Building Blocks of Proteins - Amino Acids, Building Blocks of Lipids - Simple Fatty Acids, Sphingosine, Glycerol and Cholesterol, Building Blocks of Nucleic Acids - Nucleotides, Biochemical Transformations

Chapter 2: Macromolecules: Structure & Function

Carbohydrates - The Energy Givers, Proteins - The Performers, Enzymes - The Catalysts, Lipids and Biomembranes - The Barriers, Nucleic Acids - The Managers

Unit-III Genetics and Molecular Biology 20 Marks 50 Periods
Chapter 1: Concepts of Genetics

Historical Perspective, Multiple Alleles, Linkage and Crossing Over, Genetic Mapping, Gene Interaction, Sex-Linked Inheritance, Extranuclear Inheritance, Quantitative Inheritance, Genes at the Population Level

Chapter 2: Genes and Genomes: Structure and Function

Discovery of DNA as Genetic Material, DNA Replication, Fine Structure of the Genes, From Gene to Protein, Transcription – The Basic Process, Genetic Code, Translation, Regulation of Gene Expression, Mutations, DNA Repair, Human Genetic Disorders, Genome Organization

Unit IV: Cells and Organisms 
Chapter 1 The Basic Unit of Life

Cell Structure and Components, Tissues and Organs, Stem Cells, Biodiversity, Organization of Life

Chapter 2: Cell Growth and Development

Cell Division, Cell Cycle, Cell Communication, Nutrition, Gaseous Exchange, Internal Transport,Maintaining the Internal Environment, Reproduction, In Vitro Fertilization, Animal and Plant Development, Immune Response in Animals, Programmed Cell Death, Defense Mechanisms in Plants 

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CBSE Class-11 Syllabus 2018-19 (Biology)

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CBSE Class-11 Syllabus 2018-19 (Biology)

The present syllabus provides the students with new concepts along with an extended exposure to contemporary areas of the subject. The syllabus also aims at emphasizing on the underlying principles that are common to both animals and plants as well as highlighting the relationship of Biology with other areas of knowledge. The format of the syllabus allows a simple, clear, sequential flow of concepts. It relates the study of biology to real life through the use of technology. It links the discoveries and innovations in biology to everyday life such as environment, industry, health and agriculture. The updated syllabus also focuses on reducing the curriculum load while ensuring that ample opportunities and scope for learning and appreciating basic concepts of the subject continue to be available within its framework. The prescribed syllabus is expected to:

  • promote understanding of basic principles of Biology;
  • encourage learning of emerging knowledge and its relevance to individual and society;
  • promote rational/scientific attitude towards issues related to population, environment and development;
  • enhance awareness about environmental issues, problems and their appropriate solutions;
  • create awareness amongst the learners about diversity in the living organisms and developing respect for other living beings;
  • appreciate that the most complex biological phenomena are built on essentially simple processes;
  • It is expected that the students would get an exposure to various branches of Biology in the syllabus in a more contextual and friendly manner as they study its various units

COURSE STRUCTURE :

Unit Title No.of Period Marks
I Diversity of Living Organisms 23 07
II Structural Organisation in Plants and Animals 22 12
III Structure and Function 35 15
IV Plant Physiology 40 18
V Human Physiology 40 18
  Total 160 70

Unit-I Diversity of Living Organisms 
Chapter-1: The Living World

What is living? Biodiversity; Need for classification; three domains of life; taxonomy and systematics;concept of species and taxonomical hierarchy; binomial nomenclature; tools for study of taxonomymuseums, zoological parks, herbaria, botanical gardens.

Chapter-2: Biological Classification

Five kingdom classification; Salient features and classification of Monera, Protista and Fungi into major groups: Lichens, Viruses and Viroids.

Chapter-3: Plant Kingdom

Salient features and classification of plants into major groups - Algae, Bryophyta, Pteridophyta,Gymnospermae and Angiospermae (three to five salient and distinguishing features and at least two examples of each category); Angiosperms - classification upto class, characteristic features and examples.

Chapter-4: Animal Kingdom

Salient features and classification of animals non-chordates up to phyla level and chordates up to class level (three to five salient features and at least two examples of each category).
(No live animals or specimen should be displayed.)

Unit-II Structural Organisation in Animals and Plants 
Chapter-5: Morphology of Flowering Plants

Morphology and modifications: Internal Morphology of different parts of flowering plants: root, stem, leaf, inflorescence, flower, fruit and seed (to be dealt along with the relevant experiment of the Practical Syllabus).

Chapter-6: Anatomy of Flowering Plants

Anatomy and functions of different tissues.

Chapter-7: Structural Organisation in Animals

Animal tissues; Morphology, anatomy and functions of different systems (digestive, circulatory,respiratory, nervous and reproductive) of an insect (cockroach). (a brief account only)

Unit-III Cell: Structure and Function 

Chapter-8: Cell-The Unit of Life

Cell theory and cell as the basic unit of life: Structure of prokaryotic and eukaryotic cells; Plant cell and animal cell; cell envelope; cell membrane, cell wall; cell organelles - structure and function; endomembrane system, endoplasmic reticulum, golgi bodies, lysosomes, vacuoles; mitochondria, ribosomes, plastids, microbodies; cytoskeleton, cilia, flagella, centrioles (ultrastructure and function); nucleus.

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CBSE Class-11 Syllabus 2018-19 (Chemistry)

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CBSE Class-11 Syllabus 2018-19 (Chemistry)

Rationale :

Higher Secondary is the most crucial stage of school education because at this juncture specialized discipline based, content -oriented courses are introduced. Students reach this stage after 10 years of general education and opt for Chemistry with a purpose of pursuing their career in basic sciences or professional courses like medicine, engineering, technology and other applied areas. Therefore, there is a need to provide learners with sufficient conceptual background of Chemistry, which will make them competent to meet the challenges of academic and professional courses after the senior secondary stage.
The new and updated curriculum is based on disciplinary approach with rigour and depth taking care that the syllabus is not heavy and at the same time it is comparable to the international level. The knowledge related to the subject of Chemistry has undergone tremendous changes during the past one decade. Many new areas like synthetic materials, bio -molecules, natural resources, industrial chemistry are coming in a big way and deserve to be an integral part of chemistry syllabus at senior secondary stage. At international level, new formulations and nomenclature of elements and compounds, symbols and units of physical quantities floated by scientific bodies like IUPAC and CGPM are of immense importance and need to be incorporated in the updated syllabus. The revised syllabus takes care of all these aspects. Greater emphasis has been laid on use of new nomenclature, symbols and formulations, teaching of fundamental concepts, application of concepts in chemistry to industry/ technology, logical sequencing of units, removal of obsolete content and repetition, etc.

Objectives :

The curriculum of Chemistry at Senior Secondary Stage aims to:

  • promote understanding of basic facts and concepts in chemistry while retaining the excitement of chemistry.
  • make students capable of studying chemistry in academic and professional courses (such as medicine, engineering, technology) at tertiary level.
  • expose the students to various emerging new areas of chemistry and apprise them with their relevance in future studies and their application in various spheres of chemical sciences and technology.
  • equip students to face various challenges related to health, nutrition, environment, population,weather, industries and agriculture.
  • develop problem solving skills in students.
  • expose the students to different processes used in industries and their technological applications. 
  • apprise students with interface of chemistry with other disciplines of science such as physics, biology, geology, engineering etc.
  • acquaint students with different aspects of chemistry used in daily life.
  • develop an interest in students to study chemistry as a discipline.
  • integrate life skills and values in the context of chemistry

Unit No.

Title

No. of Periods

Marks

Unit I

Some Basic Concepts of Chemistry

O8

08

Unit II

Structure of Atom

10

 

Unit III

Classification of Elements and Periodicity in Properties

06

04

Unit IV

Chemical Bonding and Molecular Structure

14

20

Unit V

States of Matter: Gases, Liquids and solids

18

 

Unit VI

Chemical Thermodynamics

16

 

Unit VII

Equilibrium

14

 

Unit VIII

Redox Reactions

06

20

Unit IX

Hydrogen

08

 

Unit X

s -Block Elements

10

 

Unit XI

p -Block Elements

18

 

Unit XII

Organic Chemistry: Some basic Principles and Techniques

14

18

Unit XIII

Hydrocarbons

12

 

Unit XIV

Environmental Chemistry

06

 

 

Total

160

70

Unit I: Some Basic Concepts of Chemistry 8 Periods

General Introduction: Importance and scope of chemistry. 
Nature of matter, laws of chemical combination, Dalton's atomic theory: concept of elements, atoms and molecules.
Atomic and molecular masses, mole concept and molar mass, percentage composition, empirical and molecular formula, chemical reactions, stoichiometry and calculations based on stoichiometry.

Unit II: Structure of Atom 10 Periods

Bohr's model and its limitations, concept of shells and subshells, dual nature of matter and light, de Broglie's relationship, Heisenberg uncertainty principle, concept of orbitals, quantum numbers, shapes of s, p and d orbitals, rules for filling electrons in orbitals - Aufbau principle, Pauli's exclusion principle and Hund's rule, electronic configuration of atoms,stability of half-filled and completely filled orbitals.

Unit III: Classification of Elements and Periodicity in Properties 06 Periods

Modern periodic law and the present form of periodic table, periodic trends in properties of elements -atomic radii, ionic radii, inert gas radii, Ionization enthalpy, electron gain enthalpy, electronegativity, valency. Nomenclature of elements with atomic number greater than 100

Unit IV: Chemical Bonding and Molecular structure 14 Periods

Valence electrons, ionic bond, covalent bond, bond parameters, Lewis structure, polar character of covalent bond, covalent character of ionic bond, valence bond theory,
resonance, geometry of covalent molecules, VSEPR theory, concept of hybridization,
involving s, p and d orbitals and shapes of some simple molecules, molecular orbital
theory of homonuclear diatomic molecules(qualitative idea only), hydrogen bond.

Unit V: States of Matter: Gases, Liquids and Solids 18 Periods

Three states of matter, intermolecular interactions, types of bonding, melting and boiling points, role of gas laws in elucidating the concept of the molecule, Boyle's law, Charles law, Gay Lussac's law, Avogadro's law, ideal behaviour, empirical derivation of gas equation, Avogadro's number, ideal gas equation. Deviation from ideal behaviour, liquefaction of gases, critical temperature, kinetic energy and molecular speeds (elementary idea)
Liquid State: vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations) 
Solid state: Classification of solids based on different binding forces: molecular, ionic,covalent and metallic solids, amorphous and crystalline solids (elementary idea). Unit cell in two dimensional and three dimensional lattices, calculation of density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects, electrical and magnetic properties.

Unit VI: Chemical Thermodynamics 16 Periods

Concepts of System and types of systems, surroundings, work, heat, energy, extensive and intensive properties, state functions. First law of thermodynamics -internal energy and enthalpy, heat capacity and specific heat, measurement of AU and AH, Hess's law of constant heat summation, enthalpy of bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution and dilution. Second law of
Thermodynamics (brief introduction). Introduction of entropy as a state function, Gibb's energy change for spontaneous and non- spontaneous processes, criteria for equilibrium. 
Third law of thermodynamics (brief introduction).

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CBSE Class-11 Syllabus 2018-19 (Physics)

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CBSE Class-11 Syllabus 2018-19 (Physics)

Senior Secondary stage of school education is a stage of transition from general education to discipline-based focus on curriculum. The present updated syllabus keeps in view the rigour and depth of disciplinary approach as well as the comprehension level of learners. Due care has also been taken that the syllabus is comparable to the international standards. Salient features of the syllabus include: 

  • Emphasis on basic conceptual understanding of the content. 
  • Emphasis on use of SI units, symbols, nomenclature of physical quantities and formulations as per international standards.
  • Providing logical sequencing of units of the subject matter and proper placement of concepts with their linkage for better learning.
  • Reducing the curriculum load by eliminating overlapping of concepts/content within the discipline and other disciplines.
  • Promotion of process-skills, problem-solving abilities and applications of Physics concepts.Besides, the syllabus also attempts to
  • strengthen the concepts developed at the secondary stage to provide firm foundation for further learning in the subject.
  • expose the learners to different processes used in Physics-related industrial and technological applications.
  • develop process-skills and experimental, observational, manipulative, decision making and investigatory skills in the learners.
  • promote problem solving abilities and creative thinking in learners.
  • develop conceptual competence in the learners and make them realize and appreciate the interface of Physics with other disciplines. 

Unit I: Physical World and Measurement             10 Periods

 Chapter–1: Physical World

Physics-scope and excitement; nature of physical laws; Physics, technology and society.

Chapter–2: Units and Measurements

Need for measurement: Units of measurement; systems of units; SI units, fundamental and derived units. Length, mass and time measurements; accuracy and precision of measuring instruments; errors in measurement; significant figures.Dimensions of physical quantities, dimensional analysis and its applications.

Unit II:    Kinematics                                       20 Periods

Chapter–3: Motion in a Straight Line

Frame of reference, Motion in a straight line: Position-time graph, speed and velocity.

Elementary concepts of differentiation and integration for describing motion, uniform and non-uniform motion, average speed and instantaneous velocity, uniformly accelerated motion, velocity - time and position-time graphs.

Relations for uniformly accelerated motion (graphical treatment).
 
Chapter–4: Motion in a Plane

Scalar and vector quantities; position and displacement vectors, general vectors and their notations; equality of vectors, multiplication of vectors by a real number; addition and subtraction of vectors, relative velocity, Unit vector; resolution of a vector in a plane, rectangular components, Scalar and Vector product of vectors.

Motion in a plane, cases of uniform velocity and uniform acceleration-projectile motion, uniform circular motion.

Unit III:    Laws of Motion                          14 Periods

Chapter–5: Laws of Motion

Intuitive concept of force, Inertia, Newton's first law of motion; momentum and Newton's second law of motion; impulse; Newton's third law of motion.

Law of conservation of linear momentum and its applications.

Equilibrium of concurrent forces, Static and kinetic friction, laws of friction, rolling friction, lubrication.

Dynamics of uniform circular motion: Centripetal force, examples of circular motion (vehicle on a level circular road, vehicle on a banked road).

Unit IV:    Work, Energy and Power       12 Periods

Chapter–6: Work, Engery and Power

Work done by a constant force and a variable force; kinetic energy, work-energy theorem, power.

Notion of potential energy, potential energy of a spring, conservative forces: conservation of mechanical energy (kinetic and potential energies); non-conservative forces: motion in a vertical circle; elastic and inelastic collisions in one and two dimensions.

Unit V:    Motion of System of Particles and Rigid Body        18 Periods

Chapter–7: System of Particles and Rotational Motion

Centre of mass of a two-particle system, momentum conservation and centre of mass motion.

Centre of mass of a rigid body; centre of mass of a uniform rod.

Moment of a force, torque, angular momentum, law of conservation of angular momentum and its applications.

Equilibrium of rigid bodies, rigid body rotation and equations of rotational motion, comparison of linear and rotational motions.

Moment of inertia, radius of gyration, values of moments of inertia for simple geometrical objects (no derivation). Statement of parallel and perpendicular axes theorems and their applications.

Unit VI:    Gravitation           12 Periods

Chapter–8: Gravitation

Kepler's laws of planetary motion, universal law of gravitation.

Acceleration due to gravity and its variation with altitude and depth.

Gravitational potential energy and gravitational potential, escape velocity, orbital velocity of a satellite, Geo-stationary satellites.
 
Unit VII:    Properties of Bulk Matter    20 Periods

Chapter–9: Mechanical Properties of Solids

Elastic behaviour, Stress-strain relationship, Hooke's law, Young's modulus, bulk modulus, shear modulus of rigidity, Poisson's ratio; elastic energy.

Chapter–10: Mechanical Properties of Fluids

Pressure due to a fluid column; Pascal's law and its applications (hydraulic lift and hydraulic brakes), effect of gravity on fluid pressure.

Viscosity, Stokes' law, terminal velocity, streamline and turbulent flow, critical velocity, Bernoulli's theorem and its applications.

Surface energy and surface tension, angle of contact, excess of pressure across a curved surface, application of surface tension ideas to drops, bubbles and capillary rise.

Chapter–11: Thermal Properties of Matter

Heat, temperature, thermal expansion; thermal expansion of solids, liquids and gases, anomalous expansion of water; specific heat capacity; Cp, Cv - calorimetry; change of state - latent heat capacity.

Heat transfer-conduction, convection and radiation, thermal conductivity, qualitative ideas of Blackbody radiation, Wein's displacement Law, Stefan's law, Green house effect.

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CBSE Class-11 Syllabus 2018-19 (Mathematics)

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CBSE Class-11 Syllabus 2018-19 (Mathematics)

The Syllabus in the subject of Mathematics has undergone changes from time to time in accordance with growth of the subject and emerging needs of the society. Senior Secondary stage is a launching stage from where the students go either for higher academic education in Mathematics or for professional courses like Engineering, Physical and Bioscience, Commerce or Computer Applications. The present revised syllabus has been designed in accordance with National Curriculum Framework 2005 and as per guidelines given in Focus Group on Teaching of Mathematics 2005 which is to meet the emerging needs of all categories of students. Motivating the topics from real life situations and other subject areas, greater emphasis has been laid on application of various concepts.

Objectives :

The broad objectives of teaching Mathematics at senior school stage intend to help the students:

  • to acquire knowledge and critical understanding, particularly by way of motivation and visualization, of basic concepts, terms, principles, symbols and mastery of underlying processes and skills.
  • to feel the flow of reasons while proving a result or solving a problem.
  • to apply the knowledge and skills acquired to solve problems and wherever possible,by more than one method.
  • to develop positive attitude to think, analyze and articulate logically.
  • to develop interest in the subject by participating in related competitions.
  • to acquaint students with different aspects of Mathematics used in daily life.
  • to develop an interest in students to study Mathematics as a discipline.
  • to develop awareness of the need for national integration, protection of environment,
  • observance of small family norms, removal of social barriers, elimination of gender biases.
  • to develop reverence and respect towards great Mathematicians for their contributions to the field of Mathematics.

Course Structure :

No. Unit No.of Periods Marks
1. Sets and Functions 60 29
2. Algebra 70 36
3. Coordinate Geometry 40 13
4. Calculus 30 06
5. Mathematical Reasoning 10 03
6. Statistics and Probability 30 12
  Total 240 100

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(Syllabus) CBSE Syllabus Class-11 (XI) 

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(Syllabus) CBSE Syllabus Class-11 (XI) 

CBSE Syllabus Class-11 (XI) 2019-20

CBSE Syllabus Class-11 (XI) 2018-19

CBSE Syllabus Class-11 (XI) 2017-18

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Economics

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Economics

Sample Question Paper
Class XII (2017-18)
Economics (030)

SECTION A : MICROECONOMICS

1 Which of the following is a statement of normative nature in economics?
a) Economics is study of choices/alternatives.
b) Government should be concerned with how to reduce unemployment
c) According to an estimate, in spite of severe shortage, more than 10% of houses in Indian cities are lying vacant.
d) Accommodation of Refugees is posing a big problem for the Europe 1

2 Define Marginal Physical Product. 1
3 A firm is operating with a Total Variable Cost of 500 when 5 units of the given output are produced and the Total Fixed Costs are 200, what will be the Average Total Cost of producing 5 units of output?
i) 140 ii) 100 iii ) 120 iv) 300 1

4 In an imperfectly competitive market, if the Total Revenue is maximum, Marginal Revenue will be ...................... 1

5 State and discuss any two factors that will shift the Production Possibility Frontier (PPF)to the right.
Or
Draft a hypothetical schedule for a straight line Production Possibility Curve. 3

6 Giving reason, state the impact of each of following on demand curve of a normal good ‘X’ if
i) Price of its complementary good falls.
ii) News reports claims that consumption of product X has harmful effect on human health.
iii) Income of consumer increases, 3

7 a. Arrange the following coefficients of price elasticity of demand in ascending order: -0.87, -0.53, -3.1, -0.80, 1
b. Comment upon the degree of elasticity of demand for commodity X,if the price of the commodity falls from 28 per unit to 23 per unit and its quantity demanded rises from 50 units to 100 units. 3

8 What is meant by Price Floor? Discuss in brief, any one consequence of imposition of floor price above equilibrium price with help of a diagram.
. Or
How is the price of a commodity determined in a perfectly competitive market? Explain with help of a diagram. 4

9 Explain how the following factors affect the supply of the commodity (any two)

a) Price of factor inputs b) State of technology c) Government taxation Policy 4

10 a) A consumer, Mr Aman is in state of equilibrium consuming two goods X and Y, with given prices Px and Py . What will happen if ? 2

b) Identify which of the following is not true for the Indifference Curves theory. Give valid reasons for choice of your answer: 4
a. Lower indifference curve represents lower level of satisfaction.
b. Two indifference curves can intersect each other.
c. Indifference curve must be convex to origin at the point of tangency with the budget line at the consumer’s equilibrium.
d. Indifference curves are drawn under the ordinal approach to consumer equilibrium.
OR
A consumer has total money income of 500 to be spent on two goods X and Y with prices of 50 and 10 per unit respectively. On the basis of the given information, answer the following questions:
a. Give the equation of the budget line for the consumer.
b. What is the value of slope of the budget line?
c. How many units can the consumer buy if he is to spend all his money income on good X?
d. How does the budget line change if there is a 50% fall in price of good Y?

11 a) Why is Total Variable Cost curve inverse S- shaped?
b) What is Average Fixed Cost of a firm? Why is an Average Fixed Cost Curve a rectangular Hyperbola? Explain with help of a diagram.

12 Suppose the value of demand and supply curves of a Commodity-X is given by the following two equations simultaneously: Qd = 200 –10p Qs = 50 + 15p
i) Find the equilibrium price and equilibrium quantity of commodity X.
ii) Suppose that the price of a factor inputs used in producing the commodity has changed, resulting in the new supply curve given by the equation Qs’ = 100 + 15p Analyse the new equilibrium price and new equilibrium quantity as against the original equilibrium price and equilibrium quantity. 6

SECTION B : MACROECONOMICS

13 Define money supply? 1

14 State one fiscal measure that can be used to reduce the gap between rich and poor.1

15 Define the capital receipts of a government.1

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Engineering Graphics

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Engineering Graphics

SAMPLE QUESTION PAPER (2017-18)
ENGINEERING GRAPHICS (046)

Note:
(i) All dimensions are in millimetres.
(ii) Missing and mismatching dimensions, if any, may be suitably assumed.
(iii) Follow the SP: 46, 2003 revised codes. (with First angle method of projection)
(iv) In no view of question 2, are hidden edges or lines required.
(v) In question 4, hidden edges or lines are to be shown in views without section.

Q1. Answer the following multiple choice questions. Print the correct choice on your drawing sheet. 5
(i) The angle between the flanks of a metric thread is
a) 55o
b) 90o
c) 60o
d) 75o

(ii) Which one among the following represents a permanent fastener?
a) Nut
b) Rivet
c) Screw
d) Bolt

(iii) In isometric projection, the four centre method is used to construct
a) an ellipse
b) an involute
c) a parabola
d) a hyperbola

(iv) The convexity provided on the rim of the solid web cast iron pulley is called
a) Bending
b) Curving
c) Crowning
d) Riveting

(v) The number of cotters used in an assembly of sleeve and cotter joint
are
a) One
b) Two
c) Three
d) Four

Q.2 (a) Construct an isometric scale. 4
(b) Draw the isometric projection of a pentagonal prism (base edge 25 mm, axial length 55mm) resting on its rectangular face with its axis parallel to H.P. and V.P. both. Indicate the direction of viewing. Give all the dimensions. 7
(c) Draw an Isometric Projection of a triangular pyramid (base edge = 34 mm, height = 50 mm) with one base edge, at the back, parallel to V.P. is placed centrally on the top face of a hexagonal prism (base edge = 30mm, height = 60 mm) having two of its rectangular faces parallel to V.P. The common axis is perpendicular to the H.P. Draw the isometric projection of the combination. Give all the dimensions and indicate the direction of viewing. 13

Q.3 (a) Draw to scale 1:1, the standard profile of the B.S.W. thread (External) with the enlarged pitch = 50mm. Give standard dimensions. 8
OR
Draw to scale 1:1, the Front View and Side View of a Tee headed bolt with diameter 25mm, keeping its axis parallel to both V.P and H.P. Give standard dimensions.
(b) Sketch free hand the Front View and Top View of a Feather Key with Gib head at both ends for a shaft of 50mm diameter. Give all the standard dimensions. 5

OR

Sketch free hand the Front View and Top View of a 60° Counter Sunk Head Rivet of diameter 20 mm. Keep the axis vertical. Give all the standard dimensions.

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Computer Science

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Computer Science

SAMPLE QUESTION PAPER

Subject: Computer Science

Class: XII (2017-18)

Instructions:
(a) All questions are compulsory,
(b) Answer either Section A or Section B:
(i) Section A - Programming Language with C++
(ii) Section B - Programming Language with Python
(c) Section C is compulsory.

SECTION – A (C++)

Q. No.  Part   Question Description   Marks
Q1.(a) What is the role of a parameter/argument passed in a function? Can a default value be assigned to a parameter(Yes/No)? If yes, justify your answer with the help of a suitable example otherwise give reason. 2
(b) Raman suggests Kishan the following header files which are required to be included in the given C++ program. Identify the header files which are wrongly suggested by Raman.

Program:

Suggested header files:-
1. iostream.h
2. stdio.h
3. conio.h
4. ctype.h 1

(c)Rewrite the following program after removing the syntactical errors (is any). Underline each correction.

(d) Write the output of the following C++ program code(assume all necessary header files are included in program):

(e) Write the output of the following C++ program code(assume all necessary header files are included in program):

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Commercial Art

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Commercial Art

General Instructions:
(i) All the eight questions are compulsory which carry equal marks.
(ii) Answers to be written for question nos.1 and 2 in about200 words each. Question nos.6, 7 and 8 are objective type.

1.Appreciate any of the following miniature-paintings included in your course of study only based on its (a) Nam of the painter (b) medium & technique (c) subject-matter and (composition):
(a) Radha (Bani-Thani) (Rajasthani School)

(b) Krishna with Gopis (Pahari School)

2. Describe the origin and development of the Mughal or Deccan School of Miniature Painting.

3.Which human life-values are expressed in any of the following paintings of the Bengal School? Explain briefly:
(a) Shiva and Sati
(b) Journey’s End

4. Write a critical note on the compositional arrangement of any of the following contemporary (modern) Indian art-works or sculptures included in your course of study, based on the aesthetic parameters:

(1) Of Walls (a graphic-print)
(2) Triumph of Labour(a sculpture)
(3) Gossip (a painting)

5.Identify any relevant painting of the Rajasthani or Pahari School of Miniature Painting included in your course of study comprising of the following features and explain them in that particular painting accordingly:
(1) The tradition of simple and straight forward compositions in the Rajasthani miniature paintings, in which main figures stand out against a flat background in dark or bright colours.
OR
(2) Depiction of the Krishna Lila themes in the Pahari miniature paintings.

6. Mention the titles of any three Mughal and two Deccani Miniature paintings included in your course of study.

7. Mention the names of those five painters of the Bengal School are included in your course of study.

8. Mention the title of the art-work done by each of the following contemporary (Modern) Indian Artists, which is included in your course of study:
(1) Gaganendranath Tagore (Painter)
(2) KamleshDuttPande (Painter)
(3) SomnathHore (Graphic-Artist)
(4) K. LaxmaGoud (Graphic-Artist)
(5) AmarnathSehgal (Sculptor)

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Business Studies

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Business Studies

1. Name the process which provides the requisite amount, quality, timing and sequence of efforts and ensures that planned objectives are achieved with a minimum of conflict. (1)
2. What are Planning premises? (1)
3. Name the process of exchange of information between two or more persons to reach common understanding. (1)
4. Sara worked in a call center. Her team manager did not wish to be contradicted and gave rewards depending on the result. State one benefit of the style of leadership being followed by Sara’s team manager. (1)
5. What does a high Debt Service Coverage Ratio indicate? (1)
6. Aarohan Ltd. an automobile manufacturer was diversifying into manufacturing two-wheelers. They knew that India is on a growth path and a new breed of consumer is eager for a first vehicle. The market responded very well to the new product. The
company did not have to allow credit, as it had advance orders from four to six months with deposits paid. Also, due to efficiency in managing their operations as soon as a vehicle was off the assembly line, it was out to the dealers. Give any one reason discussed above which helped the firm in managing its working capital efficiently. (1)
7. SEBI recently called for information and issued a show cause notice to NSE and its 14 officials seeking explanation on the Preferential Access allegations at the Exchange’s Co-location facility. State the function that SEBI performed by doing so. (1)
8. Identify the right of a consumer under Consumer Protection Act, 1986 which Consumer organizations help a consumer to claim by performing the function of “encouraging consumers to strongly protest and take an action against unscrupulous, exploitative and unfair trade practices of sellers”. (1)
9. Progress Ltd. Is facing difficulties in introduction of machinery of latest technology as they are facing resistance from the informal groups who are pressurizing the members to work against organizational interests. As the Human Resources manager of the company would you advise the management of the company to confront them or give them some other suggestion to deal with the informal groups. (3)
10. Shyam wanted to start a business of selling handicrafts by getting in touch with the craftsmen in the rural areas of Bengal. He wants to make a low investment in fixed Capital. Advise him in taking suitable decisions regarding the Nature of Business, Scale of operations and Financing Alternatives (in a developed financial market) that he needs to take for the purpose. (3)
11. State any three functions of a supervisor. (3)
12. Malaysian budget airline group Sky Europe announced discounted fares, starting as low as Rs.1,099 for domestic destinations operated by its Indian Joint Venture carrier and Rs.2,099 for international flights operated by other group airlines under a limited period offer. A. Identify the medium of communication which can be used by the firm to inform a large number of people about the new fares. B. Also, state any two merits of the communication tool, apart from the one discussed above. (3)
13. State any three responsibilities that a consumer must keep in mind while purchasing gold jewelry. (3)
14. Having transformed 2500 Kirana stores across eight cities in to virtual super markets, the start up Quick Bizz further decided in advance, to collaborate with 15000-20,000 store owners in top 30 cities of the country by the end of this year. The company has set its eye on digitizing over 1,00,000 kirana stores over next 18-24 months. A. Identify and explain the step in the process of one of the functions of management discussed above. B. Also explain the last step to be performed by Quick Bizz as part of the process. (4)
15. At present, apart from the basic pay and allowances as a part of compensation, the employees and employers contribute 12% of basic wages each towards Employees Provident Fund scheme and Employees Pension Fund scheme. A proposal to reduce the contribution by employers and employees to 10% of basic pay and dearness allowance was listed on the agenda for a recent meeting of Employees Provident Fund Organization held. The stakeholders expressed their reservations about it and they feel that it should be continued at 12%. Explain any two needs as suggested by Maslow’s Need Hierarchy Theory, which will not be satisfied by the incentives discussed above. (4)
16. State the first four steps which are involved in the screen-based trading for buying and selling of securities in the secondary market. (4)
17. Bye-Bye Motors recently informed the media about its aim to train up to 4000 people in the next 3 years in the skills associated with automobile industry as part of its program to provide technical and vocational education for unemployed youth. The firm has already started the program in collaboration with Automobile Skill Development Council. This news in the media has helped the firm in promoting its image in the eyes of the public and consumer activist groups.
A. Why is it important for the company to satisfy the public and the consumer activist groups. Give reasons.
B. Which departments in the firm can be given the responsibility to disseminate information and build goodwill of the firm? (4)
18. R&T Reality, the property development arm of the construction and engineering giant R&T in a recent report to the media shared that it is betting on bigger and better projects

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(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 : English Language And Literature

(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 :

English Language And Literature

SECTION - A
READING – 20 marks

Q1. Read the passage given below and answer the questions that follow:

1. Necessity is indeed the mother of invention. When areas in and around Leh began to experience water shortages, life didn’t grind to a halt. Why? Because Chewang Norphel, a retired civil engineer in the Jammu and Kashmir government came up with the idea of artificial glaciers.
2. Ladakh, a cold desert at an altitude of 3,000-3,500 metres above sea level, has a low average annual rainfall rate of 50mm. Glaciers have always been the only source of water.Agriculture is completely dependent on glacier melt unlike the rest of river/monsoon-fed India. But over the years with increasing effects of climate change, rainfall and snowfall patterns have been changing, resulting in severe shortage and drought situations. Given the severe winter conditions, the window for farming is usually limited to one harvest season.
3. It is located between the natural glacier above and the village below. The one closer to the village and lowest in altitude melts first, providing water during April/May, the crucial sowing season. Further layers of ice above melt with increasing temperature thus ensuring continuous supply to the fields. Thus, farmers have been able to manage two crops instead of one. It costs about Rs.1,50,000 and above to create one.
4. Fondly called the “glacier man”, Mr. Norphel has designed over 15 artificial glaciers in and around Leh since 1987. In recognition of his pioneering effort, he was conferred the Padma Shri by President Pranab Mukherjee, in 2015.
5. There are few basic steps followed in creating the artificial glacier.
6. River or stream water at higher altitude is diverted to a shaded area of the hill, facing north, where the winter sun is blocked by a ridge or a mountain range. At the start of winter/November, the diverted water is made to flow onto sloping hill face through distribution channels. Stone embankments are built at regular intervals which impede the flow of water, making shallow pools and freeze, forming a cascade of ice along the slope.Ice formation continues for 3-4 months resulting in a large accumulation of ice which is referred to as an “artificial glacier”. (349 words)

1.1 Attempt any eight of the following questions on the basis of the passage you have read (1X8=8Marks)

i. Who was Chewang Norphel?
ii. What kind of land form is Ladakh?
iii. Why have Glaciers been the only source of water for Ladakh?
iv. Why has the pattern of snowfall and rainfall changed?
v. How are Glaciers significant for irrigation?
vi. How do farmers manage to grow two crops instead of one?
vii. In which year did President Pranab Mukherjee confer Padma Shri to Mr. Norphel?
viii. How many months does the ice formation continue for?
ix. Find the word in the paragraph 6 which means the same as ‘gathering’?

Q2.Read the passage given below and answer the questions that follow:

1. Have you ever failed at something so miserably that the thought of attempting to do it again was the last thing you wanted to do?
2. If your answer is yes, then you are “not a robot.” Unlike robots, we human beings have feelings, emotions, and dreams. We are all meant to grow and stretch despite our circumstances and our limitations. Flourishing and trying to make our dreams come true is great when life is going our way. But what happens when it’s not? What happens when you fail despite all of your hard work? Do you stay down and accept the defeat or do you get up again and again until you are satisfied? If you have a tendency to persevere and keep going then you have what experts call, grit.
3. Falling down or failing is one of the most agonizing, embarrassing, and scariest human experiences. But it is also one of the most educational, empowering, and essential parts of living a successful and fulfilling life. Did you know that perseverance (grit) is one of the seven qualities that have been described as the keys to personal success and betterment in society? The other six are: curiosity, gratitude, optimism, self-control, social intelligence, and zest.Thomas Edison is a model for grit for trying 1,000 plus times to invent the light bulb. If you are reading this with the lights on in your room, you know well he succeeded. When asked why he kept going despite his hundreds of failures, he merely stated that what he had been not failures. They were hundreds of ways not to create a light bulb. This statement not only revealed his grit but also his optimism for looking at the bright side
4. Grit can be learned to help you become more successful. One of the techniques that helps is mindfulness. Mindfulness is a practice that helps the individual stay in the moment by bringing awareness of his or her experience without judgement. This practice has been used to quiet the noise of their fears and doubts. Through this simple practice of mindfulness, individuals have the ability to stop the self-sabotaging downward spiral of hopelessness, despair, and frustration.
5. What did you do to overcome the negative and self-sabotaging feelings of failure? Reflect on what you did, and try to use those same powerful resources to help you today.

2.1 On the basis of your reading of the passage, answer any four of the following questions in about 30-40 words each . (2X4=8) :

i. According to the passage, what are the attributes of a human?
ii. What is perceived as grit?
iii. How is ‘failing’ an educational and empowering part of human life?
iv. In what ways can grit be developed?
v. How does mindfulness help?

2.2 On the basis of your reading of the passage, answer any four of the following: (1X4=4)

i. While inventing the light bulb, Thomas Edison had failed____________
a. 1000 times b. 10000 plus times c. 1000 plus times d. 10000 times
ii. Failure is a part of _______ life.
a. normal b. common c. human d. ordinary
iii. In paragraph 2, ____________ means continue.
a. robots b. satisfied c. persevere d. flourishing
iv. In paragraph 3, the synonym of distressing is __________.
a. embarrassing b. scariest c. agonizing d. failing
v. _________ helps in preventing individuals from going down the lines of despair.
a. success b. fear c. doubt d. mindfulness

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Chemistry

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Chemistry

General Instructions:
(i) All questions are compulsory.
(ii) Questions number 1 to 5 are very short answer questions and carry 1 mark each.
(iii) Questions number 6 to 10 are short answer questions and carry 2 marks each.
(iv) Questions number 11 to 22 are also short answer questions and carry 3 marks each.
(v) Question number 23 is a value based question and carry 4 marks.
(vi) Questions number 24 to 26 are long answer questions and carry 5 marks each.
(vii) Use log tables, if necessary. Use of calculators is not allowed

1. (CH3)3C—CHO does not undergo aldol condensation. Comment. 1

2. In the process of wine making, ripened grapes are crushed so that sugar and enzyme should come in contact with each other and fermentation should start. What will happen if anaerobic conditions are not maintained during this process? 1

3. A coordination compound with molecular formula CrCl3.4H2O precipitates one mole of AgCl with AgNO3 solution. Its molar conductivity is found to be equivalent to two ions. What is the structural formula and name of the compound? 1

4. How is Brownian movement responsible for the stability of sols? 1

5. In the Arrhenius equation, what does the factor RT -Ea/RT corresponds to? 1

6. (i) Allyl cholride can be distinguished from Vinyl chloride by NaOH and silver nitrate test. Comment.
(ii) Alkyl halide reacts with Lithium aluminium hydride to give alkane. Name the attacking reagent which will bring out this change.2

7. Which of the following solutions has higher freezing point?
0.05 M Al2(SO4)3 , 0.1 M K3[Fe(CN)6] Justify. 2

8. Calculate the emf of the following cell at 298 K :
 

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biotechnology

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biotechnology

SECTION A

1. “cos” sites are important for packaging DNA into phage head. 1

2. Protein Efficiency Ratio PER is used as a measure of growth expressed in terms of weight gain of an adult by consuming1g of food protein.½ ½ 

3. The bond strength decreases due to the insulating properties / dielectric strength of water. 1

4. Gene is transferred with the help of tiny vesicles of bipolar phospholipids that  fuse with the cell membrane, releasing the DNA into the cytoplasm. 1

5. Rous and Jones. 1

6.

BAC

 YAC

Effective in Bacteria

Effective in Yeast

It has genes for maintenance and replication of F-factor

It has telomere, centromere and ARS from yeast chromosome

Can accommodate up to 300kb of DNA

can be used for cloning DNA upto 1 MB in size.

(Any two)                                 

SECTION B

7. Tissue engineering :Naturally derived or synthetic materials may be engineered into "scaffolds" that when implanted in the body could provide a template that allows the body’s own cells to grow and form new tissues Such implants could function without triggering immune responses. Genetically-modified animals may also provide a source of cells, tissues, and organs for xenografts. 1

8. Metagenomics approach  has been developed to identify and select microbial genes synthesizing  novel  molecules.  This  approach  directly  utilizes  the  large  number  of microbial genomes present in an environmental niche, for example in soil, in water such as ocean or in human gut. These genomes are contributed by both the culturable and the non-culturable variety of microbes and  together constitute what has been termed as metagenome

The  collective  DNA  is  extracted  from  a  sample  of  soil,  water  or  any  other environmental   niche.    It   is   subjected   to   restriction   digestion   using   restriction endonucleases and the fragments are cloned into suitable vectors. The clones are then screened for presence of a variety of molecules.

9. Plant regeneration pathways The plants can be regenerated by either organogenesis and somatic embryogenesis. Organogenesis means formation of organs like shoots from the cultured explants .Miller and Skoog experimentally proved that formation of  shoot or root first on the cultured tissue depends on the relative concentration of auxin and cytokinin. If auxins are high in the medium, then it promotes rooting while if cytokinins are high, shoot formation is promoted.

In somatic embryogenesis, the totipotent cells may undergo embryogenic pathway to form  somatic  embryos  ,which  can  be  grown  to  regenerate  into  complete  plants. Generally, somatic embryos  resemble the zygotic embryos (seed embryos) except in their place of origin and larger size. For the first time, Steward in 1958 and Reinert in 1959 independently reported the somatic embryogenesis from carrot cultures.

10

1. Transformation  : In this technique. we put the recombinant DNA in the medium having host cells .Host cells will uptake the desired DNA provided the host cells are competent .If they are not competent , we make them competent by treating it with the cold calcium chloride.

Mandel and Higa proposed the technique in 1970.

2.Trasfection : The desired DNA  is mixed with the cationic liposome’s or dextran and layered on the host cells and is then taken inside by the host cells.

3.Electroporation : We pass electricity of desired voltage through the culture of the cells resulting in transient ( temporary ) pores in the cell membrane and through these pores DNA  enters.

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biology

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biology

General Instructions:
1. There are a total of 26 questions and five sections in the question paper. All questions are compulsory.
2. Section A contains question number 1 to 5, Very Short Answer type questions of one mark each.
3. Section B contains question number 6 to 10, Short Answer type I questions of two marks each.
4. Section C contains question number 11 to 22, Short Answer type II questions of three marks each.
5. Section D contains question number 23, Value Based Question of four marks.
6. Section E contains question number 24 to 26, Long Answer type questions of five marks each.
7. There is no overall choice in the question paper, however, an internal choice is provided in one question of two marks, one question of three marks and all three questions of five marks. An examinee is to attempt any one of the questions out of
the two given in the question paper with the same question number.

Section – A

1. A tissue, of a tobacco plant, infected with TMV was used to obtain a new plant. Identify the technique used and reason out the possibility of obtaining a new healthy plant. 1
2. State a method of cellular defense which works in all eukaryotic organisms 1
3. In case of an infertile couple, the male partner can inseminate normally but the mobility of sperms is below 40 percent. Which kind of ART is suitable in this situation to form an embryo in the laboratory conditions, without involving a donor? 1
4. Write the two components of the first artificial recombinant DNA molecule constructed by Cohen and Boyer.1
5. A cross was carried out between two pea plants showing the contrasting traits of height of the plant. The result of the cross showed 50% of parental characters. Name the type of cross. 1

Section B

6. The alarming population growth is leading to scarcity of basic requirements. Suggest with reasons, any two population control measures other than contraception to address the situation.

7. During a cytological study conducted on the chromosomes of the insects, it was observed that only 50% of the sperms had a specific structure after spermatogenesis. Name the structure and write its significance in sex determination of insects.2
8. To reduce the percentage of population suffering from hunger and malnutrition, microbes are grown on a large scale to act as food supplements. Mention any two microbes used as food supplement and suggest their role.
OR
Success rate of artificial insemination in cattle is fairly low. Identify any other technique to improve the successful production of hybrids. State two advantages of this technique. 2
9. (a) A patient who had an organ transplant was given cyclosporin– A. Mention the microbial source and state the reason for administration of this bioactive molecule.
(b) Bottled fruit juices bought from the market are clearer as compared to those made at home. Give reason. 2
10. Evaluate the effect of loss of biodiversity in a region. Mention any four such effects. 2

Section C

11. Draw the diagram of microsporangium of an Angiosperm and label any four parts State the function of its innermost wall layer. 3
12. Give reason : -
(a) A liverwort plant is unable to complete its life cycle in a dry environment.
(b) Number of male gametes produced is much more than the female gametes produced.
(c) Organisms exhibiting external fertilization show great synchrony between the sexes and release a large number of gametes into surrounding medium. 3
13. (a) Name the different gases contained in the flask used as an experimental setup by S.L. Miller.
(b) On the basis of composition of gases in this experiment, what was the condition in the flask?
(c) Write the conclusion drawn from this experiment. 3
14. When a snapdragon plant bearing pink colour flower was selfed, it was found that, 69 plants were having red coloured flowers. What would be the number of plants bearing pink flower and white flower. Show with the help of Punnett square. Identity the principle of inheritance involved in this experiment

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Agriculture

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Agriculture

General instructions: 1) All questions are compulsory.

2) Marks of each question is indicated against it.

 

Q. No.

Question

Marks

1

What is luxury consumption?

1

2

Traditionally potato chips are stored after drying. Justify the reason behind removal of moisture during its preparation.

1

3

What is vermicomposting?

1

4

Neem is a very good bio pesticide. The insecticidal property of neem is due to

presence of which active principle ingredient?

 

1

5

Write down the name of two species of honey bees which can be used in

commercial bee keeping.

 

1

6

What is kitchen gardening?

 

1

7

Where is National Centre for Mushroom located in India?

 

1

8

When was Plant Nursery Registration Act was enforced in India?

 

1

9

How presence of a lawn around the place of living or work is beneficial to the

people?

 

1

10

How can organic farming improve soil productivity?

Or

Write two objectives of National Project on Organic Farming(NPOF).

 

 

2

11

Discuss the advantages of using sulfur dioxide as preservative.

2

12

Define food additive. How is it different from ‘food preservative’.

2

13

Define Field Capacity.

2

14

Enlist four value added products that can be made from cereals.

2

15

What are the principles of food preservation?

3

16

Gulkhand  and  rose  water  are  two  important  processed  flower  products.

Describe the process of their preparation.

3

17

Explain the process of preparation of mango pickle.

3

18

Various  methods  are  employed  to  dry  flowers  and  foliage.  Describe  any  three

methods

 

3

19

Justify  the  reason  behind  pre  cooling  in  harvested  fruits  and  vegetables

before their storage?

 

3

20

Mention the common methods of packaging adopted in food preservation.

3

21

Describe drip irrigation system.

Or

Write advantages and limitation of sprinkler irrigation system.

 

3

22

Explain the functions and deficiency symptoms of nitrogen and phosphorus.

2.5+2.5=5

23

Draw the layout plan for a kitchen garden with an area of 40 m2. What are

the advantages of kitchen garden?

Or

What are the important Government Schemes for the promotion of organic farming in our country?

 

2+2=5

24

Define flush in respect of mushroom cultivation. Write the names of most

commonly cultivated mushrooms in India.

2+2 = 5

25

Explain the concept and components of Integrated Nutrient Management?

Or

Explain the constraints in bio fertilizer technology.

5

26

Enumerate the importance of plant nurseries in India.

5

27

Describe various methods of  sowing/transplanting of grasses during lawn

making.

Or

Describe the nutritional status of mushroom.

5

 

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