In physical adsorption,the gas molecules are held on a solid surface by
- AChemical forces
- BElectrostatic forces
- CGravitational forces
- DVan der Waal's forces
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Similar Questions
How many layers are adsorbed in chemical adsorption (chemisorption)?
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View SolutionIn the neutralisation of $KI$ by $AgNO_3$,the positive charge on the colloidal particles is due to the adsorption of:
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View SolutionAssertion : The enthalpy of physisorption is greater than chemisorption.
Reason : Molecules of adsorbate and adsorbent are held by van der Waal's forces in physisorption and by chemical bonds in chemisorption.
Reason : Molecules of adsorbate and adsorbent are held by van der Waal's forces in physisorption and by chemical bonds in chemisorption.
MediumAIIMS 2016
View SolutionThe volumes of gases $H_2, CH_4, CO_2$ and $NH_3$ adsorbed by $1 \ g$ of charcoal at $288 \ K$ are in the order:
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View SolutionWhich of the following statements is incorrect for physical adsorption?
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