Assertion (A) : In Group 16, oxygen has highest electron affinity. Reason (R ) : Oxygen has the smallest atomic radius in the group.

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Assertion (A) : In Group 16, oxygen has highest electron affinity.
Reason (R ) : Oxygen has the smallest atomic radius in the group.
A. Both A and R true and R is the correct explanation of A
B. Both A and R true and R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true


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Correct Answer - B
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Reason. It is due to relatively compact 2p-subshell in which the electron enters in oxygen.

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