Select the correct statement from the following.
A.Equilibrium constant changes with addition of a catalyst.
B.Catalyst increases the rate of forward reaction only.
C.The ratio of mixture at equilibrium does not change by catalyst.
D.Catalysts are active only in solution.

Hint:As we all know that a catalyst could be a substance that shortens the time required for the reaction to succeed in equilibrium, a catalyst could be a substance that will increase the speed of a reaction. A catalyst doesn't react the extent or position of a reaction at equilibrium. It helps a reaction deliver the goods equilibrium quicker.

Complete step-by-step answer: We know that a reaction will be sped up by adding a catalyst, together with reversible reactions that involve a final equilibrium state. In any reversible reaction, the equilibrium state refers to the state wherever the forward and reverse reaction rates are seen to be equal. Within the presence of a catalyst, each the reverse and therefore the forward reaction rates equally speed up permitting the system to succeed in the equilibrium quicker.
We can state that a catalyst could be a compound that leads to the acceleration of the progress of a reaction while not itself being consumed. Some samples of catalysts embrace enzymes and acid catalysts. Catalysts permit a reaction to proceed quicker through the transition state having lower energy. Addition of Catalyst has no impact on the worth of constants. Catalyst will increase the speed of forward and backward reaction in equal proportionality. The magnitude relation of mixture at equilibrium doesn't amendment by catalyst. Catalyst could also be of solid, liquid or vaporous state.

Therefore, Option C is correct option i.e. the ratio of mixture at equilibrium does not change by catalyst.

Note:A catalyst hurries up a reaction. They are doing this by lowering the energy of activation that's required for the continuing of the reaction. An equivalent amounts of reactants and same range of product exist at equilibrium as that will exist within the uncatalyzed reaction within the presence of a catalyst