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Which of the following statements is not true with respect to chemisorption?

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in Chemistry – Class 12 by (188k points)
Which of the following statements is not true with respect to chemisorption?

(a) Depends on nature of adsorbate and adsorbent

(b) Has a large heat of adsorption

(c) Forms a unimolecular layer

(d) Occurs at low temperature

I have been asked this question in an interview for job.

My question is from Surface Chemistry in chapter Surface Chemistry of Chemistry – Class 12

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Right choice is (d) Occurs at low temperature

Explanation: Chemisorption is a kind of adsorption that involves a chemical reaction between the adsorbent and adsorbate, resulting in the formation of a chemical bond between the two. Since a bond is to be formed, chemisorption is highly dependent on the reactants(adsorbate and adsorbent) and has a large heat of adsorption. Also, since it involves bond formation, it cannot be multi-layered. Chemisorption is favoured to occur at high temperature.

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