JEE Main 2024 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 1 February 2024, Shift 1, Chemistry Q64

Question 64 of 90 in this shift, Chemistry question 4 of 30, Section A.

We have three aqueous solutions of NaCl labelled as 'A', 'B' and 'C' with concentration 0.1 M, 0.01 M and 0.001 M, respectively. The value of van't Hoff factor(i) for these solutions will be in the order :

(1) $i_A < i_B < i_C$ Official answer
(2) $i_A > i_B > i_C$
(3) $i_A = i_B = i_C$
(4) $i_A < i_C < i_B$

Official answer

Option 1

NTA final key.

Chapter: Solutions
Topic: Colligative Properties
Idea tested: Van't Hoff Factor (i)

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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 108 of the 174 JEE Main shifts held from 2017 to 2026.