Assertion :The presence of nitro group facilitates nucleophilic substitution reactions in aryl halides. Reason: The intermediate carbanion is stabilised due to the presence of nitro group.

Read the above assertion and reason and choose the correct option regarding it.

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 A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The $C -$ atom of $C - C l$ in chloronitrobenzene carries a small +ve charge.
REF IMAGE 1

Because of the positive charge, attack at this carbon atom by the nucleophile is facilitated.
REF. IMAGE 2

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Similar questions

Assertion (A) p-nitrophenol is more acidic than phenol.
Reason (R) Nitro group helps in the stabilisation of the phenoxide ion by dispersal of negative charge due to resonance.
(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 presence of nitro group facilitates nucleophilic substitution reaction in aryl halide Reason: The intermediate carboniun is stablised due to the presence of the nitro group.

Assertion (A) IUPAC name of the compund
$C H_{3} - C H | C H_{3} - O - C H_{2} - C H_{2} - C H_{3}$ is 2-ethoxy-2-methylethane
Reason (R) In IUPAC nomenclature, ether is regarded as hydrocarbon derivative in which a hydrogen atom is replaced by - OR or - 0AR group [where, R = alkyl group and Ar = aryl group].
(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.

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.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

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

Reason: The compressibility factor for

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Assertion :The presence of nitro group facilitates nucleophilic substitution reactions in aryl halides. Reason: The intermediate carbanion is stabilised due to the presence of nitro group.Read the above assertion and reason and choose the correct option regarding it.

Assertion :The presence of nitro group facilitates nucleophilic substitution reactions in aryl halides. Reason: The intermediate carbanion is stabilised due to the presence of nitro group.

Read the above assertion and reason and choose the correct option regarding it.