JEE Main 2021 — Hydrogen Question with Solution

Carbon monoxide does not react with water to form an acid.

The carbon monoxide molecule is one that won't react with water at all. As the acidic oxide has a higher oxidation state, it reacts with water to produce acid, and reacts with base to produce salt. 

${\mathrm{CO}}_2+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_2{\mathrm{CO}}_3$

$\mathrm{C}+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{steam}\right)\to \mathrm{CO}+{\mathrm{H}}_2$

$\left.\begin{array}{l}{\mathrm{CH}}_4+{\mathrm{H}}_2\mathrm{O}\to \mathrm{CO}+3{\mathrm{H}}_2\\ {\mathrm{C}}_3{\mathrm{H}}_8+{\mathrm{H}}_2\mathrm{O}\to 3\mathrm{CO}+{\mathrm{H}}_2\end{array}\right]$ both reactions are carried out at $1270 \mathrm{K}$ temp. with $\mathrm{Ni}$ catalyst