Home Chemistry Chemical Kinetics All Topic Question for Revision Test For an exothermic chemical process occurring…
Chemistry Chemical Kinetics All Topic Question for Revision Test Single Correct MCQ
Published on: August 14, 2026

For an exothermic chemical process occurring in two steps as follows

(i) (slow)

(ii) (fast) In how many graph, the process of reaction can be best described?

(i) (ii)

(iii) (iv)

(v)

A
1
B
2
C
3
D
4

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Text Solution

Verified by Experts
The correct answer is:
A

Among the given graph, only one, i.e. (iii) describes the process of the given reaction. As, first step is slow (require large activation energy) second step is fast (less activation energy) and overall reaction is exothermic. So, product energy level should be less as compared to reactants.

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