A) Fe is oxidised from \[F{{e}^{2+}}\] to \[F{{e}^{3+}}.\]
B) Carbon is oxidised from \[{{C}^{2+}}\] to \[{{C}^{4+}}\].
C) N is oxidised from \[{{N}^{3-}}\] to \[{{N}^{5+}}\].
D) Carbon is not oxidised.
Correct Answer: D
Solution :
[d] In\[C{{N}^{-}}\], oxidation of C is +2, and it changes to +4 oxidation state in\[C{{O}_{2}}\]. So C is also oxidised.You need to login to perform this action.
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