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. Amont the halogens, electron affinity of Cl is more than that of F because size of fluorine is very small. \[\therefore \]Correct order is \[Cl\text{ }>F>Br>I\]
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