MCQ
During water-gas shift reaction
- ✓carbon monoxide is oxidized to carbon dioxide.
- Bcarbon is oxidized to carbon monoxide.
- Ccarbon dioxide is reduced to carbon monoxide.
- Dwater is evaporated in presence of catalyst.

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$C{H_3}N{H_2} + X + KOH \to C{H_3}NC$ (highly offensive odour)
$ -\mathrm{OCH}_3,-\mathrm{NO}_2,-\mathrm{CN},-\mathrm{CH}_3-\mathrm{NHCOCH}_3, $
$ -\mathrm{COR},-\mathrm{OH},-\mathrm{COOH},-\mathrm{Cl}$

$\begin{array}{*{20}{c}}
{C{H_3}C{H_2} - N - C{H_2}C{H_3}} \\
{|\,} \\
{C{H_3}}
\end{array}$
is :