JEE Main 2022ChemistrySurface ChemistryMediumNumerical

JEE Main 2022 — Surface Chemistry Question with Solution

JEE Main 2022 (24 Jun Shift 2)

Question

When 200 mL of 0.2 M acetic acid is shaken with 0.6 g of wood charcoal, the final concentration of acetic acid after adsorption is 0.1 M. The mass of acetic acid adsorbed per gram of carbon is g.

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Show full solutionCorrect answer: 2
Correct answer
2

Step-by-step explanation

Mole of acetic acid absorbed (on 0.6 gram charcoal) =(0.2 X200)10-3 – (0.1 X 200)10-3=20 X 10-3

Weight of CH3COOH absorbed (on 0.6 gram charcoal)=(20 X10-3 ) 60 = 1200 X10-3  gram = 1.2 gram

Mass of CH3COOH absorbed per gram=1.20.6=2grams

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About this question

This is a previous-year question from JEE Main 2022, covering the Surface Chemistry 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.