CBSE Class 10 Science Question Paper SA 2 2012 Set 14

CBSE Class 10 Science Question Paper SA 2 2012 (14). Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

SECTION  - A

1.      What is the minimum distance between an object and its real image in case of a concave mirror  ?

2.      Name the property  of carbon element responsible for a large number of compounds having carbon.

3.

                       What is depicted in the above mentioned scheme  ?

4.      Ozone is deadly poisonous, still it performs an essential function.  How ? 

5.      (a)    We prefer a convex mirror  as a rear view mirror  in vehicles. Why ? 

(b)    State a condition for no refraction of light when light enters from one medium to another.

6.  (a)    Why do parallel rays of different colours deviate differently while passing through a glass prism ?

(b)    Name any two phenomenon associated with  the formation  of rainbow.

7. (a)    The increase in demand for fossil fuels is affecting our environment adversely". Justify this statement.

(b)    Why is LPG considered a better fuel than coal ?

8.      Stars twinkle  while the planets do not twinkle.   Why ?                           

9.      What are isomers ?  Draw the structures of two isomers of butane (C₄H₁₀).

10.   State the reason for the following 

(a)    The elements of the same group have similar chemical properties

(b)    The elements of the same period have different properties.

11.   Suggest two measures which  could be incorporated in daily  life to become more  environment  friendly.

Please click the link below to download pdf file of CBSE Class 10 Science Question Paper SA 2 2012 (14).