JEE Main 2020 — Surface Chemistry Question with Solution
From: JEE Main 2020 (Online) 9th January Evening Slot
Question
A mixture of gases O2, H2 and CO are taken in
a closed vessel containing charcoal. The graph
that represents the correct behaviour of
pressure with time is :
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Initially H2 combines with O2, therefore rapid
fall in pressure will be observed. Then
gradually adsorption of CO will occur by
activated charcoal.
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This is a previous-year question from JEE Main 2020, 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.