In a reversible reaction, a catalyst :

Options

A. increases the rate of the forward reaction only
B. increase the rate of the forward reaction at greater extent than that of the backward reaction.
C. increase the rate of the forward reaction and decreases that of the backward reaction to different extent
D. increases the rate of the forward and backward reactions equally .

Answer

D

Explanation

An increase in rate of reaction in forward direction by a catalyst for a reaction in equilibrium brings in an increase in concentration of products and thus rate fo backward reaction also increases to same magnitude and the equilibrium position is not same magnitude and the equilibrium position is not altered .