In physisorption adsorbent does not show

Question:

In physisorption adsorbent does not show specificity for any particular gas

because ______________.

(i) involved van der Waals forces are universal.

(ii) gases involved behave like ideal gases.

(iii) enthalpy of adsorption is low.

(iv) it is a reversible process.

Solution:

Option (i) involved van der Waals forces are universal is the answer.

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