1.

Assertion (A) : Electrical charge of the particle decreases by boiling the sol. Reason(R) : Collision of molecules of dispersions medium increased by boiling the sol.

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) and Reason (R) both are true. (R) is the proper explanation of (A).


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