The reaction of $HCOOH$ with conc. $H_2SO_4$ gives

Assertion $(A)$: Carboxylic acids are more acidic than Phenols.
Reason $(R)$: Resonance structures of carboxylate ion are equivalent,while resonance structures of phenoxide ion are not equivalent.

Arrange the following compounds in increasing order of their acidic strength:
$(A)$ $CH_3COOH$
$(B)$ $Ph-CH_2-COOH$
$(C)$ $Br-CH_2-COOH$
$(D)$ $O_2N-CH_2-COOH$

Which of the following set of compounds react with $NaHCO_3$?

The major product $(A)$ is:

Identify the product formed in the following reaction: $(CH_3CO)_2O \xrightarrow{H_2O} \text{Product}$