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99 Percentile Qs Bank for JEE MainChemistryChemical Kinetics

Which one of the following reaction energy diagrams best represents a reaction in the forward direction; that is spontaneous/exothermic and complete in two consecutive steps in which the second step is little more difficult than the first step ?

Correct answer

1

Step-by-step solution

Reaction in two consecutive steps imply two activated complexes corresponding to two peaks and one reaction intermediate corresponding to a minima in the valley of these activated complexes i.e., choice (i) and (ii) other are ruled out. Second step more difficult means activation energy for second step is higher confirmed.

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