Published by:
CGP EDU Academic Team
Published on: August 12, 2026
For a first order reaction, the correct option is
A
The degree of dissociation is equal to 
&
&
B
The time taken for the completion of 
reaction is thrice the 
of the reaction
reaction is thrice the of the reaction
C
The pre-exponential factor in the Arrhenius equation has the dimension of time, 
D
Both
Text Solution
Verified by ExpertsThe correct answer is:
D
In option 1, for first order reaction, if degree of dissociation is 
, then
In option, 3 according to Arrhenius equation:
A has Time 
dimension because, 
is a dimensionless quantity.
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