Question

Oxalic acid when heated with conc. $H_{2}S{O}_4$, gives out

• A. $H_2{O}_2$ and $C{O}_2$
• B. $CO$ and $C{O}_2$
• C. Oxalic sulphate
• D. $C{O}_2$ and $H_{2}S$

Answer 1

The correct option is B $CO$ and $C{O}_2$

Oxalic acid reacts with conc. sulphuric acid to produce a mixture of carbon monoxide, carbon dioxide and water.

$\begin{array}{c}COOH\\ |\\ COOH\end{array}\underset{}{\overset{conc.H_{2}S{O}_4}{\to }}{H}_{2}O+CO+C{O}_2$