Q20 / 180 · KCET 2013 · Chemistry
When formic acid is heated with conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$, the gas evolved is
- AOnly $\mathrm{CO}_{2}$
- Correct answerBOnly CO
- Ca mixtue of $\mathrm{CO}$ and $\mathrm{CO}_{2}$
- Da mixtue of $\mathrm{SO}_{2}$ and $\mathrm{CO}_{2}$
Solution
When warmed with conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$, formic acid gives $\mathrm{CO}$ and $\mathrm{H}_{2} \mathrm{O}$.
$\mathrm{HCOOH} \stackrel{\text { conc. } \mathrm{H}_{2} \mathrm{SO}_{4}}{\longrightarrow} \mathrm{CO}+\mathrm{H}_{2} \mathrm{O}$
Hence, the correct answer is option: 'B'.