Question

The electron affinities of $N,O,S$ and $Cl$ are such that :

• A. $N<O<S<Cl$
• B. $O<N<Cl<S$
• C. $O\approx Cl<N=S$
• D. $O<S<Cl<N$

Answer 1

The correct option is A $N<O<S<Cl$

As we move along a period, electron affinity increases, also as we move down a group it increases, so the order is $N<O<S<Cl$.

Hence, the correct option is $\text{A}$