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(Sample Paper) CBSE Class X Science Paper Year: 2011

Sample Question Paper Year 2011
CBSE Class X
Subject: Science

Question 1- A person is advised to wear Spectacles with Concave lens. What type of defect of vision is he suffering from.

Question 2- Write the structural formula of chloro ethane.

Question 3- How do you distinguished a medium to be rarer or denser ?Give two reasons.

Question 4- 7.A  4.5 cm needle is placed 12 cm. away from a convex mirror of official length is 15cm. Give the image location & magnification.

Question 5- State two main properties of elements on which Mendeleev's periodic classification was based. why could no fixed position be assigned to hydrogen in his periodic table?



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