The correct statement(s) about the following reaction sequence is(are)\ \

Question

Professor PC Thomas Classes · Answer

(b, c) :\  ' $Q$ ' is steam volatile due to intramolecular hydrogen bonding while ' $R$ ' undergoes intermolecular hydrogen bonding hence, has higher boiling point. ' $Q$ ' gives dark violet colouration with $1 \%$ aqueous $\mathrm{FeCl}_{3}$ solution due to the presence of phenolic group while ' $S$ ' gives yellow precipitate with 2, 4-dinitrophenyl hydrazine due to the presence of aldehydic group (-CHO).\