A) \[O>C>N>B\]
B) \[B>N>C>O\]
C) \[\text{O}>C>B>N\]
D) \[\text{O}>B>C>N\]
Correct Answer: C
Solution :
The correct order of electron affinity of B, C, N, O is \[O>C>B>N\]. Electron affinity increases on moving from left to right in a period. Its reason is that atomic radius decreases in a period with increase in atomic number. But the electron affinity of element with half or full filled orbital (having stable configuration) is lowest.B | C | N | O | |
EA | \[0.16\] | \[1.25\] | \[-0.32\] | \[1.47\] |
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