1.

Assertion (A) : Air becomes dry in presence of silica gel. Reason (R) : Water molecules are absorbed on the surface of gel.

Answer»

Assertion (A) and REASON (R) both are TRUE. (R) is the PROPER explanation of (A). 
Assertion (A) and Reason (R) both are true but (R) does not explains (A). 
Assertion (A) and Reason (R) both are FALSE.
Assertion (A) is not true but Reason (R) is true. 

SOLUTION :Assertion (A) is true and Reason (R) is false.


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