Chemistry - ALCOHOL & ETHER Question with Solution | TestHub

(a) → r (Jones reagent, H₂CrO₄): allylic secondary alcohol is oxidized to the corresponding ketone.

(b) → t (SeO₂/MeCOOH): dibenzyl ketone undergoes α-methylene oxidation to give the 1,3-diketone.

(c) → q (FeSO₄ + H₂O₂, Fenton reagent): hydroxylation of benzene gives phenol.

(d) → p (MnO₂): selectively oxidizes benzylic alcohol (Ph–CH(OH)–) to ketone, leaving the terminal –OH unaffected.

(e) → s (CrO₃ in glacial AcOH): oxidative cleavage of the terminal primary alcohol side chain gives carboxylic acids while retaining the unsaturation pattern shown.

Therefore, the correct matching is:

$(\mathrm{a}\to \mathrm{r}),(\mathrm{b}\to \mathrm{t}),(\mathrm{c}\to \mathrm{q}),(\mathrm{d}\to \mathrm{p})(\mathrm{e}\to \mathrm{s})$