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NTA Abhyas JEE Main2020ChemistrySurface ChemistryPractice

Which statement is correct about chemisorptions?

Options

  1. AIt is irreversible in nature
  2. BIt involves formation multi layer of adsorbent on adsorbate
  3. CDecreases with increase of temperature
  4. DIt involves the weak attractive forces between adsorbent and adsorbate

Correct answer

A. It is irreversible in nature

Step-by-step solution

Chemical adsorption is irreversible due to formation of new strong chemical bonds. It is unilayer due formation of new chemical bonds. It first increases with increase in temperature due to supply of energy of activation then decreases due to breaking of covalent bond.

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