A) \[B<C<O>N\]
B) \[B>C>N>O\]
C) \[\text{O}>C>B>N\]
D) \[\text{O}<C<B<N\]
Correct Answer: A
Solution :
Electron affinity generally increases- in a period from left to right because size decreases and nuclear charge increases. 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 \[B<C<O>N\]
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