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JEE CHEMISTRY MCQ: SURFACE CHEMISTRY
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Medium
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Analyzing
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Assertion : In chemisorption, adsorption first increases with temperature and then decreases.
Reason : Heat keeps on providing more and more activation energy.
Reason : Heat keeps on providing more and more activation energy.
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Correct option: C
If Assertion is correct but Reason is incorrect.
Option C is correct. The assertion about chemisorption increasing with temperature initially and then decreasing is correct, but the reason that heat keeps providing more activation energy is incorrect. After reaching a certain temperature, the kinetic energy of the adsorbate becomes too high, leading to desorption.
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