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

${\text{C}}_7{\text{H}}_6{\text{O}}_2\left(\text{P}\right)\underset{\left(2\right)\text{Δ}}{\stackrel{\left(1\right)\text{aq}.{\text{NH}}_3}{\to }}\text{Q}\underset{\text{KOH}}{\stackrel{{\text{Br}}_2}{\to }}\text{R}$
Here P is an acid, Q is amide and Q to R is Hoffmann's bromamide degradation as follows