Assertion :The rate of reaction is the rate of change of concentration of a reactant or a product. Reason: Rate of reaction remains constant during the complete 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
Rate of reaction does not remain constant during the complete reaction because rate depends upon the concentration of reactants which decreases with time.

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Similar questions

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.

(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) 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.

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

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

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.

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Assertion :The rate of reaction is the rate of change of concentration of a reactant or a product. Reason: Rate of reaction remains constant during the complete reaction.

The correct option is C Assertion is correct but Reason is incorrectRate of reaction does not remain constant during the complete reaction because rate depends upon the concentration of reactants which decreases with time.

The correct option is C Assertion is correct but Reason is incorrect
Rate of reaction does not remain constant during the complete reaction because rate depends upon the concentration of reactants which decreases with time.