Q27 / 160 · AP EAMCET 2022 (08 Jul Shift 1) · Chemistry

The correct order of adsorption of the following gases on the surface of charcoal is $\begin{array}{llllll}\mathrm{H}_2 & \mathrm{CH}_4 & \mathrm{SO}_2 & \mathrm{H}_2 & \mathrm{CH}_4 & \mathrm{SO}_2 \\ \mathbf{I} & \mathbf{I I} & \text { III } & \mathbf{I} & \text { II } & \text { III }\end{array}$

  • Correct answer
    A
    III $>$ II $>$ I
  • B
    III $>$ I $>$ II
  • C
    $\mathrm{II}>\mathrm{I}>\mathrm{III}$
  • D
    $\mathrm{II}>\mathrm{III}>\mathrm{I}$

Solution

Higher is the critical temperature of a gas, greater is the case of liquefaction i.e., greater is the van der Waal's interaction.

Hence, the correct answer is option: 'A'.

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