JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 6 April 2024, Shift 1, Chemistry Q84

Question 84 of 90 in this shift, Chemistry question 24 of 30, Section B.

Consider the dissociation of the weak acid HX as given below

\mathrm{HX(aq) \rightleftharpoons H^+(aq) + X^-(aq)}

, Ka

= 1.2 \times 10^{-5}

[

\mathrm{K_a}

: dissociation constant] The osmotic pressure of 0.03 M aqueous solution of HX at 300 K is __________

\times 10^{-2}

bar (nearest integer). [Given : R = 0.083 L bar mol

^{-1}

^{-1}

]

Official answer

NTA final key.

Chapter: Solutions
Topic: Colligative Properties
Idea tested: Osmotic Pressure

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Asked 7× in all

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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.