Assertion :The rate of nitration of benzene is less than hexa deutero benzene.
Because Reason: Deuterium is an isotope of hydrogen.

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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Assertion is incorrect and Reason is correct

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Solution

The correct option is D Assertion is incorrect and Reason is correct
The rate of nitration of benzene is equal to the rate of nitration of hexa deutero benzene because the rate determining step does not involve the breaking of C-H or C-D bond.
Deuterium is an isotope of hydrogen.
Hence, the assertion is incorrect and Reason is correct

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Similar questions

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc. $H N O_{3} a n d H_{2} S O_{4}$ mixture.
Reason (R) - OH group in phenol is o-,p-directing.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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) Like bromination of benzene, bromination of phenol is also carried out in the presence of Lewis acid.
Reason (R) Lewis acid polarises the bromine molecule.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion: Nitrating mixture used for carrying our nitration of benzene consists of

c o n c . H N O_{3} + c o n c . H_{2} S O_{4} .

Reason :In presence of

H_{2} S O_{4}, H N O_{3}

acts as a base and produces

N O_{2}^{+}

ions.

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Assertion :The rate of nitration of benzene is less than hexa deutero benzene.Because Reason: Deuterium is an isotope of hydrogen.

Assertion :The rate of nitration of benzene is less than hexa deutero benzene.
Because Reason: Deuterium is an isotope of hydrogen.