Question

In which case the octet rule is not obeyed ?

• A. In the formation of $K^{+}$
• B. In the formation of $N{a}^{+}$
• C. In the formation $C{a}^{+2}$
• D. In the formation $M{g}^{+}$

Answer 1

Answer: (D)

In the formation $M{g}^{+}$

$Mg$ has $12$ electrons so by donating two electrons it becomes divalent cation so it does not form monovalent cation as the octet rule is disobeyed,