A) \[Mg\xrightarrow{{}}M{{g}^{++}}+2{{e}^{-}}\]
B) \[F{{e}^{2+}}\xrightarrow{{}}F{{e}^{3+}}+3{{e}^{-}}\]
C) \[S+2{{e}^{-}}\xrightarrow{{}}{{S}^{-\,\,-}}\]
D) \[S{{n}^{4}}+2e\xrightarrow{{}}S{{n}^{2+}}\]
Correct Answer: B
Solution :
\[F{{e}^{2+}}\xrightarrow{{}}F{{e}^{3+}}+3{{e}^{-}}(\times )\] \[F{{e}^{2+}}\xrightarrow{{}}F{{e}^{3+}}+{{e}^{-}}\](P)
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