A) increases the activation energy of the backward reaction
B) increases the activation energy of the forward reaction
C) decreases the activation energy of both, forward and backward reaction
D) decreases the activation energy of forward reaction
Correct Answer: C
Solution :
A catalyst increase the rate of reaction by decreasing its activation energy. In a reversible reaction, catalyst decrease activation energies of both, forward and backward reactions, equally, thereby increasing rate of both reactions equally. Thus equilibrium is approached quickly.
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