H2 gas is adsorbed on activated charcoal to a very little extent in comparison to easily liquefiable gases due to ____________.
Die to the presence of only two electrons, H2 molecule has lesser intermolecular forces of attraction. So H2 gas posses weaker van der waals forces. Therefore, (i) is wrong and (ii) is correct.
Higher the value of critical temperature, more easily a gas will be liquefiable and will be adsorbed readily. Since H2 gas has lower value of critical temperature, it cannot be easily adsorbed on activated charcoal.
Therefore, (iii) is correct but (iv) is wrong.