JEE Main 2019 — States of Matter Question with Solution
JEE Main 2019 (12 Jan Shift 1)
Question
Given:
On the basis of data given above, predict which of the following gases shows the least adsorption on a definite amount of charcoal?
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Method :
The extent of adsorption is directly proportional to the critical temperature. As has the lowest critical temperature, it will have the lowest extent of adsorption.
Method :
The value of adsorption is dependent on the intermolecular forces of attraction. Among the given options, will have the weakest van der Waal's force (London Dispersion), in which only electrons are involved.
Hence, as a force of attraction is the weakest for it will have the lowest adsorption value.
The extent of adsorption is directly proportional to the critical temperature. As has the lowest critical temperature, it will have the lowest extent of adsorption.
Method :
The value of adsorption is dependent on the intermolecular forces of attraction. Among the given options, will have the weakest van der Waal's force (London Dispersion), in which only electrons are involved.
Hence, as a force of attraction is the weakest for it will have the lowest adsorption value.
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This is a previous-year question from JEE Main 2019, covering the States of Matter 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.