# Which one of the following statements is not correct ?

1. A

Coenzymes increase the catalytic activity of enzyme

2. B

Catalyst does not initiate any reaction

3. C

The value of equilibrium constant is changed in the presence of a catalyst in the reaction at equilibrium

4. D

Enzymes catalyse mainly bio-chemical reactions

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### Solution:

Neither equilibrium state nor the equilibrium constant is influenced by catalyst

$∆\mathrm{H}$  is unaffected by catalyst,

Keq  is uneffected by catalyst

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