AktiraAktira JEE
Subscribe
ChemistryJEE Main 24 Jan 2026, Shift 2·Q2·MCQ·Easy–moderate

Aldehydes, Ketones & Acids · Distinguishing aldehydes from ketones

The unsaturated ether on acidic hydrolysis produces carbonyl compounds as shown below:-
CHX3−CH=CH−O−CH=CHX2\ce{CH3-CH=CH-O-CH=CH2}
↓\downarrow HX3OX(+)\ce{H3O^{(+)}}
CHX3−CHX2−CH=O\ce{CH3-CH2-CH=O} and O=CH−CHX3\ce{O=CH-CH3}
Based on this, predict the solution / reagent that will help to distinguish “P” and “Q” obtained in the following reaction.
  1. (1)Lucas reagent
  2. (2)2,4-DNP reagent
  3. (3)Saturated NaHSOX3\ce{NaHSO3} solution
  4. (4)Fehling solution

Video solution coming soon

We're animating every PYQ step by step. Subscribe to get them first.

Subscribe

See the full 24 Jan 2026, Shift 2 paper