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NEET levelSingle correct optionDifficulty 1 of 3sc061

A catalyst does not change

Athe activation energy of the reaction
Bthe equilibrium constant of a reversible reaction
Cthe rate of the reaction
Dthe mechanism of the reaction

Answer: B

A catalyst lowers

E_{a}

for both forward and reverse reactions and changes the mechanism and rate, but it leaves

Δ G^{\circ}

and hence

K

unchanged.

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