For the first order reaction given below select the set hav…

Chemistry Chemical Kinetics NTA Abhiyas Question Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

For the first order reaction given below select the set having correct statements

2N 2 O 5 (g) 4NO 2 (g) + O 2 (g)

(1) the concentration of the reactant decreases exponentially with time

(2) the reaction proceeds to 99.6 % completion in eight half life duration

(3) the half life of the reaction depends on the initial concentration of the reactant

(4) the half life of the reaction decreases with increasing temperature

1,2

1,2,3

1,2,4

1,2,3,4

Text Solution

Verified by Experts

The correct answer is:

1,2,4

Here for this reaction statements 1 ,2 and 4 are correct as follows

For first order reaction

Hence concentration of [NO 2 ] decreases exponentially (First statement is correct).

Also, . Which is independent of concentration and decreases with the increase of temperature.

So statements 2 and 4 are also correct.

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