Fundamentholfundamenthol
NEET2025Chemistry
Q.

; kJ mol.

Which of the following diagrams gives an accurate representation of the above reaction?

[R → reactants; P → products]

  1. A

    1

  2. B

    2

  3. C

    3

  4. D

    4

Solution

kJ mol is negative, so the reaction is exothermic: products lie 74.8 kJ mol below the reactants.

A correct diagram shows R at higher energy, an activation barrier going up and over, and P landing 74.8 kJ mol below R, with the energy difference pointing downward.

This matches option (1).

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