For the following Assertion |Surface Chemistry |JEEMAIN 2020

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JEE MAIN 2020

08-01-20 S2

Question

For the following Assertion and Reason, the correct option is
Assertion : For hydrogenation reactions, the catalytic activity increases from Group 5 to Group 11 metals with maximum activity shown by Group 7-9 elements.
Reason : The reactants are most strongly adsorbed on group 7-9 elements.

Select the correct option:

A

Both assertion and reason are true and the reason is the correct explanation for the assertion.

B

Both assertion and reason are false.

C

The assertion is true, but the reason is false.

D

Both assertion and reason are true but the reason is not the correct explanation for the assertion.

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

The assertion is true, but the reason is false
Refer : [NCERT Page No. 132]
Reactants must not get adsorbed so strongly that they are immobilised and other reactants are left with no space on the catalyst’s surface for adsorption

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