| Assertion : A catalyst is more effective in finely divided form. |
| Reason : Finely divided form has more surface area. [AIIMS 1998] |
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Correct Answer: A
Solution :
A catalyst is more effective in finely divided form because finely divided form has more surface area. Therefore there is an increase in active centres on the surface.
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