Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

$\mathbf{P}$ can be reduced to a primary alcohol using ${\mathrm{NaBH}}_4$.

Treating $\mathbf{P}$ with conc. ${\mathrm{NH}}_4\mathrm{OH}$ solution followed by acidification gives $\mathbf{Q}$.

Treating $\mathbf{Q}$ with a solution of ${\mathrm{NaNO}}_2$ in aq. HCl liberates ${\mathrm{N}}_2$.

$\mathbf{P}$ is more acidic than ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}$.