JEE Main 2022ChemistrySolutionsEasyMCQ

JEE Main 2022 — Solutions Question with Solution

JEE Main 2022 (25 Jul Shift 2)

Question

Two solutions A and B are prepared by dissolving 1 g of non-volatile solutes X and Y. respectively in 1 kg of water. The ratio of depression in freezing points for A and B is found to be 1:4. The ratio of molar masses of X and Y is

Choose an option

Show full solutionCorrect option: B
Correct answer
B1:0.25

Step-by-step explanation

We know that for an non-electrolyte

∆Tf = Kfm  where m = molality

ΔTfxΔTfy=kf·mxkf·my=1Mx1My

⇒14=MyMx

⇒Mx:My=1:0.25

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About this question

This is a previous-year question from JEE Main 2022, covering the Solutions chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.