Assertion :A catalyst increases the rate of reaction without itself undergoing any permanent chemical change. Reason: A catalyst changes the Gibbs energy $(△ G)$ of the reaction and equilibrium constant of the reaction.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
A catalyst does not alter the Gibb's energy and equilibrium constant of the reaction. It catalyses forward and backward reaction to the same extent so that equilibrium state remains same but reaches earlier.

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Similar questions

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

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Assertion :A catalyst increases the rate of reaction without itself undergoing any permanent chemical change. Reason: A catalyst changes the Gibbs energy (△G) of the reaction and equilibrium constant of the reaction.

The correct option is C Assertion is correct but Reason is incorrectA catalyst does not alter the Gibb's energy and equilibrium constant of the reaction. It catalyses forward and backward reaction to the same extent so that equilibrium state remains same but reaches earlier.

Assertion :A catalyst increases the rate of reaction without itself undergoing any permanent chemical change. Reason: A catalyst changes the Gibbs energy $(△ G)$ of the reaction and equilibrium constant of the reaction.

The correct option is C Assertion is correct but Reason is incorrect
A catalyst does not alter the Gibb's energy and equilibrium constant of the reaction. It catalyses forward and backward reaction to the same extent so that equilibrium state remains same but reaches earlier.