MHT CET Chemistry question

Not in JEE Main or NEET syllabus

In physisorption, adsorbent does not show specificity for any particular gas because.......

(A)it involves van der Waals' forces which are universalCorrect
(B)gases involved behave like ideal gases
(C)enthalpy of adsorption is low
(D)it is a reversible process

Answer: (A)

Solution

Physisorption is caused by van der Waals' forces, which exist between all molecules, so any gas is adsorbed on any surface; real gases (not ideal) are adsorbed

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Question ID VK-062575