A) \[Cl>Br>F>I\]
B) \[Cl>F>Br>I\]
C) \[Br>Cl>F>I\]
D) \[F>Cl>Br>I\]
Correct Answer: B
Solution :
Key Idea: Electron affinity is the amount of energy released when an electron is added to isolated gaseous atom. It decreases down the group. Amount the halogens, electron affinity of \[Cl\] is more than that of \[F\] because size of fluorine is very small. \[\therefore \]Correct order is\[Cl>F>Br>I\]
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