A) \[F\]
B) \[Cl\]
C) \[Br\]
D) \[I\]
Correct Answer: B
Solution :
Halogens have highest electron gain enthalpy and its value decreases down the group because size of halogen atom increases. However, chlorine has the highest electron gain enthalpy among halogens because the electrons already present in fluorine atom exerts a repulsive force on the electron being added. Hence, the amount of energy released becomes less than chlorine. The correct order of negative electron gain enthalpy is\[Cl>F>Br>I\]
You need to login to perform this action.
You will be redirected in
3 sec
