JEE Main - Previous Year Papers JEE MAIN 2026 JEE Mains 2 April 2026 Paper Shift -2 Single Correct MCQ
Published on: August 22, 2026

Consider the reaction , for which the rate constant at is . Which of the following statements are true ?

A
When concentration of ' X ' is increased to four times, the rate of reaction becomes 16 times.
and , ,
B
The reaction is a second order reaction.
only
and ,
C
The half-life period is independent of the concentration of X .
only
and
D
Decomposition of is an example of the above reaction. (E) is valid for the above reaction. Choose the correct answer from the options given below :
and (E) only
only

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Text Solution

Verified by Experts
The correct answer is:
A

Rate of constant
[unit of ]
order reaction
rate
If concentration of A is 4 times then reaction will become 16 times.
Order of reaction is 2
Half-life of the reaction is independent of the concentration of the reactant for order, not for order reaction.
Decomposition of is example of order reaction
(E) Graph of vs is straight line for order not for order reaction.

So, statement & are correct

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