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Q.

The correct statements about catalyst are

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a

they participate in the reaction but recovered at the end 

b

they have no effect on free energy change

c

enthalpy of reaction decreases in the presence of catalyst

d

it alters the mechanism of reaction

answer is A, B, D.

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Detailed Solution

Catalyst does not affect ΔG and ΔH.
 It participate in the reaction but recovered at the end. It alters the mechanism of reaction.

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