Chemistry Question from JEE Main 2026 · 28 January, Shift 1

Given below are the four isomeric compounds $P, Q, R, S$:

$P$: Aromatic compound containing an $-\mathrm{OH}$ group $Q$: Aromatic compound containing an $-\mathrm{CHO}$ group (aldehyde) $R$: Aromatic compound containing a ketone group $S$: Aromatic compound containing a ketone group

Identify the correct statements from below:

[A.] $Q, R$ and $S$ will give precipitate with $2,4$-DNP. [B.] $P$ and $Q$ will give positive Baeyer’s test. [C.] $Q$ and $R$ will give sooty flame. [D.] $R$ and $S$ will give yellow precipitate with $I_2/\mathrm{NaOH}$. [E.] $Q$ alone will deposit silver with Tollens’ reagent.

Choose the correct option.