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Assertion : rate of reaction doubles whe...

Assertion : rate of reaction doubles when the concentration of the reactant is doubles if it is a first order reaction.
Reason : rate constant also doubles

A

if both assertion and reason are true and reason is the correct explanation of assertion

B

if both assertion and reason are true but reason is not the correct explanation of assertion

C

assertion is true but reason is false

D

both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
C
Hint : For a first reaction, when the concentration of reactant is doubled, then the rate of reaction also doubled.
Rate constant is indepened of concentration and is a constant at a constant temperature i.e., it depends on the temperature and hence, it will not be doubled and when the concentration of the reactant is doubled.
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