Which of the following statements are correct about solid catalys… - Vidyadip

MCQ

Which of the following statements are correct about solid catalyst?
$a.$ Same reactants may give different product by using different catalysts.
$b.$ Catalyst does not change $\triangle\text{H}$ of reaction.
$c.$ Catalyst is required in large quantities to catalyse reactions.
$d.$ Catalytic activity of a solid catalyst does not depend upon the strength of chemisorption.

✓
$a$ and $b$
B
$a$ and $c$
C
$b$ and $c$
D
$a$ and $d$

✓

Answer

Correct option: A.

$a$ and $b$

Action of a catalyst is highly selective in nature, i.e., a given substance can act as a catalyst only in a particular reaction and not for all the reactions. It means that a substance which acts as a catalyst in one reaction may fail to catalyse another reaction. Catalyst does not change the enthalpy of reaction.

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