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Question

The volume of gases (NH3,CO2 and CH4) adsorbed by one gram of charcoal at 298 K follows the order:

A
CH4>CO2>NH3
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B
NH3>CH4>CO2
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C
NH3>CO2>CH4
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D
CO2>NH3>CH4
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Solution

The correct option is D NH3>CO2>CH4
The gas which can be easily liquified can be easily adsorbed. Because of the presence of H bonding in NH3, it can be easily liquified.

Among the given molecules, the order in which a gas can be easily liquified is NH3>CO2>CH4.

So, the order of adsorption is NH3>CO2>CH4.

Hence, the correct answer is option C.

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