Which one of the following is not a property of physical adsorption?

  • A
    Higher the pressure,more the adsorption
  • B
    Greater the surface area,more the adsorption
  • C
    Lower the temperature,more the adsorption
  • D
    Unilayer adsorption occurs

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Assertion $(A)$: van der Waals' forces are responsible for chemisorption.
Reason $(R)$: High temperature is favourable for chemisorption.
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