Which one of the following statements is not correct ?

Catalyst does not initiate any reaction

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

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Enzymes catalyse mainly biochemical reaction

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Coenzymes increase the catalytic activity of enzyme

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Solution

The correct option is B The value of equilibrium constant is changed in the presence of a catalyst in the reaction equilibrium
For a reversible reaction, a catalyst accelerates the speed of forward as well as backward reaction to the same extent. Hence, it does not disturb the equilibrium i.e. does not change the equilibrium constant of the reaction but helps to attain the equilibrium faster.

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Similar questions

Q. Assertion :The catalyst does not alter the equilibrium constant. Reason: For the catalysed reaction and uncatalysed reaction

Δ H

remains same and equilibrium constant depends on

Δ H

Which of the following statement is not correct for the catalyst?
(a) It catalysts the forward and backward reactions to the same extent
(b) It alters $Δ G$ of the reaction
(c) It is a substance that does not change the equilibrium constant of the reaction
(d) It provides an alternate mechanism by reducing activation energy between reactants and products

A catalyst does not change the position of equilibrium of a reversible reaction because it increases the rate of

Q. Assertion :A catalyst does not influence the value of equilibrium constant. Reason: Catalyst influence the rate of both forward and backward reactions equally.

Q. The equilibrium constant for the reaction :

N_{2} (g) + O_{2} (g) ⇌ 2 N O (g)

at 2000K is

4 \times 10^{4}

In presence of catalyst the equilibrium is established ten times faster at the same temperature.

What is the value of equilibrium constant in presence of catalyst ?

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