Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The correct difference between first and second order reactions is that
A
the rate of a first ‐ order reaction does not depend on reactant concentrations; the rate of a second ‐ order reaction does depend on reactant concentrations
B
the half ‐ life of a first ‐ order reaction does not depend on 
; the half ‐ life of a second ‐ order reaction does depend on 
; the half ‐ life of a second ‐ order reaction does depend on
C
a first ‐ order reaction can be catalysed; a second ‐ order reaction cannot be catalysed
D
the rate of a first ‐ order reaction does depend on reactant concentrations; the rate of a second ‐ order reaction does not depend on reactant concentrations
Text Solution
Verified by ExpertsThe correct answer is:
B
For the first order reaction, 
which is independent of initial concentration 
For second order reaction, 
Half ‐ life depends on initial concentration of reactant.
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