JEE Main 2023 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 13 April 2023, Shift 1, Chemistry Q84

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

Solution of 12 g of non-electrolyte (A) prepared by dissolving it in 1000 mL of water exerts the same osmotic pressure as that of 0.05 M glucose solution at the same temperature. The empirical formula of A is

\mathrm{CH_2O}

. The molecular mass of A is _______ g. (Nearest integer)

Official answer

240

NTA final key.

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

Same idea in other shifts

Asked 7× in all

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29 Jan 2024, Shift 1 · Q84The osmotic pressure of a dilute solution is $7\times10^{5}$ Pa at 273K. Osmotic pressure of the same solution at 283K is ________…EasyNumerical value
10 Apr 2023, Shift 2 · Q84An aqueous solution of volume 300 $\mathrm{cm^3}$ contains 0.63 g of protein. The osmotic pressure of the solution at 300 K is 1.29 mbar.…MediumNumerical value
26 Jun 2022, Shift 2 · Q85The osmotic pressure exerted by a solution prepared by dissolving 2.0 g of protein of molar mass 60 kg $\mathrm{mol^{-1}}$ in 200 mL of…MediumNumerical value

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.