Which of the following describes energy-reaction coordinate…

Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 12 PCB Single Correct MCQ

Published on: August 13, 2026

Which of the following describes energy-reaction coordinate profile corresponds to a reaction with zero activation energy, ?

The curve rises to a peak above the reactants and then falls to the products.

The curve decreases linearly from reactants to products with no peak at any point.

The curve is S-shaped and includes a hump before reaching products.

The curve is flat at first and then rises to a maximum before dropping to products.

Text Solution

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The correct answer is:

no energy barrier; the potential energy drops smoothly from reactants to products with no peak. Any hump/maximum would imply .

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