Methanoic acid, the first member of carboxylic acid series, when warmed with concentrated sulphuric acid decompose in the following way and evolve carbon monoxide.

The driving force for this reaction lies in the fact that the`HC-=O^(+)` ion is very unstable acid and thus easily loses `H^(+)`.
Formic acid on heating with conc. `H_2 SO_4` gives

Methanoic acid, the first member of carboxylic acid series, when warmed with concentrated sulphuric acid decompose in the following way and evolve carbon monoxide. The driving force for this reaction lies in the fact that the HC-=O^(+) ion is very unstable acid and thus easily loses H^(+) . What happens when acetic acid is treated with conc. H_2 SO_4 ?

Methanoic acid, the first member of carboxylic acid series, when warmed with concentrated sulphuric acid decompose in the following way and evolve carbon monoxide. The driving force for this reaction lies in the fact that the HC-=O^(+) ion is very unstable acid and thus easily loses H^(+) . If formic acid is replaced by benzoylformic acid, C_6 H_5 COCOOH the product formed will be

Methanoic acid, the first member of carboxylic acid series, when warmed with concentrated sulphuric acid decompose in the following way and evolve carbon monoxide. The driving force for this reaction lies in the fact that the HC-=O^(+) ion is very unstable acid and thus easily loses H^(+) . If acetic acid is replaced by triphenylacetic acid, the products formed will be

Oxalic acid on heating with conc. H_(2)SO_(4) gives

Oxalic acid on treatment with conc. H_(2) SO_(4) gives