1.

The following questions consist of two statements, one labelled as the Assertion [A] and the other as Reason (R), You are to examine these two statements carefully and select the answers to these items using the codes given below:                         [NDA] Assertion [A]: Atomic weights of most of the elements are not whole numbers. Reason (R): Atoms of most of the elements contain mixture of isotopes having different atomic weights.

A. Both A and R are individually true and R is the correct explanation of A
B. Both A and R are individually true but R is NOT the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» B. Both A and R are individually true but R is NOT the correct explanation of A


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