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Question

Which of the following does not affect the rate of reaction?

A
Amount of the reactant taken
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B
Physical state of the reactant
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C
ΔH of reaction
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D
Size of vessel
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Solution

The correct option is D ΔH of reaction
The enthalpy change of reaction does not affect the rate of reaction because the rate of reaction depends only on the concentrations of reactants, Surface Area and the Physical State.

So Option C is correct

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