CBSE Class-12 Exam 2017 : Foreign Scheme Question Paper, Chemistry

CBSE Class-12 Exam 2017 : Foreign Scheme

Question Paper, Chemistry

CBSE Class-12 Exam 2017 :   Chemistry

1. What is the formula of a compound in which the element P forms ccp lattice and atoms of Q occupy 2/3rd of tetrahedral voids ?
 
2.  Arrange the following hydrides of Group-16 elements in the increasing order of their thermal stability :
H2O, H2S, H2Se, H2Te
 
3. What is the role of desorption in the process of catalysis ?
 
4. Write the IUPAC name of the following compound :
C6H5 – CH2 – CH2 – OH
 
5. Among the isomers of pentane (C5H12), write the one which on photochemical chlorination yields a single monochloride.
 
6.Do the following conversions in not more than two steps :
(a) Propene to Acetone
(b) Propanoic acid to 2-hydroxypropanoic acid
OR
Write the reaction involved in the following :
(a) Etard reaction
(b) Wolff-Kishner reduction
 
7. What are colligative properties ? Write the colligative property which is used to find the molecular mass of macromolecules.
8. (a) Write the IUPAC name of the isomer of the following complex :
[Pt(NH3)2Cl2]
(b) Write the formula for the following :
Tetraammineaquachloridocobalt(III) nitrate

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Courtesy: CBSE