A) \[B<C<O>N\]
B) \[B>O>N>0\]
C) \[O>C>B>N\]
D) \[O<C<B<N\]
Correct Answer: A
Solution :
Electron affinity generally increases in a period from left to right because it increases due to decreasing size and increasing nuclear charge. But the electron affinity of nitrogen is very low due to extra stability of half-filled 2p-orbital. Hence, the order of electron affinity is as : \[B<C<O>N\]
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