Assertion: A catalyst increases the rate of the reaction.
Reason: Catalysts lowers the activation energy of the reactants.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

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Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

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Assertion is true but Reason is false

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Assertion is false but Reason is true

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Both Assertion and Reason are false

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Solution

The correct option is A Both Assertion and Reason are true and Reason is the correct explanation of Assertion
A catalyst increases the rate of the reaction by Lowering activation energy of reactants.
The catalyst provides an alternate reaction pathway having lower activation energy.
Thus, it can alter the mechanism of reaction.

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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.

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Q. (i)
Assertion: A circle is not a rectilinear figure.
Reason: A figure formed by straight lines only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
(ii)
Assertion: All right angles are equal to one another.
Reason: A unique line passes through a single point.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
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Q. Assertion: Every parallelogram is a rectangle.
Reason: The angle bisectors of a parallelogram form a rectangle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
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(d) Assertion is false and Reason is true.

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Assertion: A catalyst increases the rate of the reaction.Reason: Catalysts lowers the activation energy of the reactants.

Assertion: A catalyst increases the rate of the reaction.
Reason: Catalysts lowers the activation energy of the reactants.