A) \[C{{I}_{(g)}}+{{e}^{-}}\xrightarrow{{}}Cl_{(g)}^{-}\]
B) \[F_{(g)}^{-}+{{e}^{-}}\xrightarrow{{}}F_{(g)}^{-2}\]
C) \[Na_{(g)}^{+}+{{e}^{-}}\xrightarrow{{}}N{{a}_{(g)}}\]
D) \[Mg_{(g)}^{+2}+{{e}^{-}}\xrightarrow{{}}Mg_{(g)}^{+}\]
Correct Answer: B
Solution :
[b] \[E{{A}_{2}}\] process is always endothermic
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