Correct electron affinity order is

MCQ

A
$O < N < Cl < S$
✓
$N < O < S < Cl$
C
$Cl > O > S > N$
D
$N = Cl > O = S$

✓

Answer

Correct option: B.

$N < O < S < Cl$

b
Electron affinity is the tendency is attract shared pair of electron towards itself. Its value decreases in a group and increases in a period. The correct order of electron affinities is as follows $N \,< \,O \,<\, S \,<\, Cl$.

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