KCET · Chemistry · Carboxylic Acid Derivatives
When formic acid is heated with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\), the gas evolved is
- A Only \(\mathrm{CO}_{2}\)
- B Only CO
- C a mixtue of \(\mathrm{CO}\) and \(\mathrm{CO}_{2}\)
- D a mixtue of \(\mathrm{SO}_{2}\) and \(\mathrm{CO}_{2}\)
Answer & Solution
Correct Answer
(B) Only CO
Step-by-step Solution
Detailed explanation
When warmed with conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\), formic acid gives \(\mathrm{CO}\) and \(\mathrm{H}_{2} \mathrm{O}\).
\(\mathrm{HCOOH} \stackrel{\text { conc. } \mathrm{H}_{2} \mathrm{SO}_{4}}{\longrightarrow} \mathrm{CO}+\mathrm{H}_{2} \mathrm{O}\)
\(\mathrm{HCOOH} \stackrel{\text { conc. } \mathrm{H}_{2} \mathrm{SO}_{4}}{\longrightarrow} \mathrm{CO}+\mathrm{H}_{2} \mathrm{O}\)
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