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The correct match is:
Column I Column II
(1) Sulphur dioxide on activated charcoal (A) Physical adsorption
(2) Hydrogen on nickel (B) chemical adsorption
(3) A tank full of water is exposed to surrounding. (C) Occlusion
(D) Desorption

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(1)-(A); (2)-(B); (3)-(C)

(1)-(A); (2)-(B); (3)-(D)

(4)-(A); (2)-(B); (3)-(D)

(2)-(A); (3)-(B); (1)-(D)

answer is B.

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Detailed Solution

When adsorption occurs on account of weak Van der Waal’s forces, the adsorption is termed as physical adsorption.

Example- Sulphur dioxide on activated charcoal.

When adsorption occurs on account of the formation of chemical bonds, the adsorption is termed as chemical adsorption.

Example- Hydrogen on nickel.

The process of removing an adsorbed substance from a surface on which it is adsorbed is called desorption.

Example- A tank full of water is exposed to surrounding..

Thus, the correct answer is option-B.

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