Question

Assertion :A catalyst speeds up a reaction but doesn't participate in its mechanism. Reason: A catalyst provides an alternative path of lower activation energy to the reactants.

• A. If both (A) and (R) are true and (R) is the correct explanation of (A).
• B. If both (A) and (R) are true, but (R) is not the correct explanation of (A).
• C. If (A) is correct, but (R) is incorrect.
• D. If (A) is incorrect, but (R) is correct.

Answer 1

The correct option is A If both (A) and (R) are true and (R) is the correct explanation of (A).

A catalyst speeds up a reaction by providing an alternative path for the reactionby lowering the activation energy to the reactants but doesn't participate in its mechanism. So both assertion and reason are correct and reason is the correct explanation for an assertion.