JUPEBChemistryChemical Equilibrium

The addition of a catalyst to a reversible reaction at equilibrium

Aincreases the equilibrium constant.
Bshifts the equilibrium towards the reactants.
Cshifts the equilibrium towards the products.
Dhas no effect on the position of equilibrium but reduces the time taken to reach it.CORRECT
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Why the answer is D, and why the others tempt you.
A catalyst lowers the activation energy of both the forward and the backward reactions equally, so the same equilibrium mixture is reached more quickly. Neither the position nor the constant changes.
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