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An exothermic chemical reaction proceeds by two stages. Reactants `overset("stage 1")rarr` Intermediate `overset("state 2")rarr` products. The activation energy of stage 1 is `50k Jmol^(-1)`. The overall enthalpy change of the reaction is `-100kJ mol^(-1)`. Which diagram could represent the energy level diagram for reaction ?A. B. C. D.

Answer» Correct Answer - 3
Two step process with negative `DeltaH` , hence option `(3)` is obvious.


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