Which of the following statements is not correct?

  • A
    Physical adsorption is due to Van der Waals forces.
  • B
    Chemical adsorption decreases at high temperature and low pressure.
  • C
    Physical adsorption is reversible.
  • D
    Adsorption energy for a chemical adsorption is generally greater than that of physical adsorption.

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Reason $(R)$: High temperature is favourable for chemisorption.
The correct answer is

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