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Which one is not correct about the chang...

Which one is not correct about the change given below?
`K_4[Fe(CN)_6]rarrFe^(3+)+CO_2+NO_3^(-)`

A

Fe is oxidised `Fe^(2+)` to `Fe^(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

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