Assertion (A) : A catalyst increases the rate of a reaction. Reason (R) : In presence of a catalyst, the…
Assertion (A) : A catalyst increases the rate of a reaction.
Reason (R) : In presence of a catalyst, the activation energy of the reaction increases.
The correct answer is
Both (A) and (R) are true and (R) is the correct explanation of (A)
Both $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(\mathrm{A})$
(A) is true, but (R) is not true
(A) is not true, but (R) is true
Solution
A catalyst increases the rate of reaction because in the presence of catalyst the activation energy of the reaction decreases.