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JEE Main 2024 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 31 January 2024, Shift 1, Chemistry Q71

Question 71 of 90 in this shift, Chemistry question 11 of 30, Section A.

'Adsorption' principle is used for which of the following purification method?

(1)ChromatographyOfficial answer
(2)Distillation
(3)Extraction
(4)Sublimation

Official answer

Option 1

NTA final key.

Chapter: Organic Chemistry: Some Basic Principles and Techniques
Topic: Adsorption
Idea tested: Adsorption Chromatography Principle

Same idea in other shifts

Asked 2× in all

6 Apr 2024, Shift 2 · Q73The correct statement among the following, for a "chromatography" purification method is :MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.