Question

In which of the following compounds the oxidation number of carbon is not zero?

• A. $HCHO$
• B. $\ce{CH3COOH}$
• C. $\ce{C_{12}H_{22}O_{11}}$
• D. $\ce{CH3CHO}$

Answer 1

Answer: (D)

$\ce{CH3CHO}$

Answer 2

O.N. of carbon in ${CH3CHO}$ is -1; in other cases it is zero.