Assertion (A): Electron affinity of Oxygen is less than that of Fluorine but greater than that of Nitrogen.
Reason (R): Fluorine has small atomic size when compared to Oxygen and Nitrogen

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A is incorrect, R is correct

Both A and R are correct and R is the correct explanation of A.

A is correct, R is incorrect.

Both A and R are correct but R is not the correct explanation of A.

answer is B.

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Detailed Solution

Assertion: It is a fact that electron affinity of Oxygen is less than that of Fluorine but greater than that of Nitrogen. Because greater the nuclear charge, stronger the attraction for the added electron towards the nucleus thus EA increase as the nuclear charge increases.

Reason: R is correct, but not correct explanation of A. Actually Fluorine has small atomic size when compared to Oxygen and Nitrogen, the order is
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