Which of the following statement is true regarding the following balanced half-reaction? `CN^(-) rarr CNO^(-)`

Options

A. Carbon is losing two electrons per atom
B. Oxidation number of carbon increases from `+1` to `+3`
C. Oxidation number of nitrogen remains constant
D. Statements (a) and ( c) both are true

Answer

D

Explanation

In the given redox reaction, `C^(-) -= N to O^(-) - C -= N`
Oxidation number of nitrogen is remaining uncharged at `-3`. Oxidation number of carbon is increasing from `+2` to `+4` Hence, (a) and ( c) are the only correct responses. Therefore, option (d) is correct.