Assertion : $4 - N i t r o$ chlorobenzene undergoes nucleophilic substitution more readily than chlorobenzene. Reason: Chlorobenzene undergoes nucleophilic substitution by elimination addition mechanism while $4 - n i t r o c h l o r o$ benzene undergoes nucleophilic substitution by addition elimination mechanism.

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 but Reason is correct

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Both statements are true but 4-nitro chlorobenzene goes nucleophilic substitutions more readily than benzene due to the $M - e f f e c t$ of nitro group 2 $+ v e$ charge is created on C attaches to $C l$ Molecule.

Option B is correct.

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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) Addition reaction of water to but-1-ene in acidic medium yields butan-1-ol.
Reason (R) Addition of water in acidic medium proceeds through the formation of primary carbocation.
(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.
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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. Read the assertion and reason carefully to mark the correct option out of the options given below:
(a)If both assertion and reason are true and the reason is the correct explanation of the assertion.
(b)If both assertion and reason are true but reason is not the correct explanation of the assertion.
(c)If assertion is true but reason is false.
(d)If assertion is false but reason is true.

Assertion: Phenol is more reactive than benzene towards electrophilic substitution reaction.
Reason : In the case of phenol, the intermediate phenoxide is more resonance stabilized.

Q. Explain with reason. Do acyl chloride undergoes nucleophilic substitution reaction or nucleophilic addition reaction more readily?

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Assertion :4−Nitro chlorobenzene undergoes nucleophilic substitution more readily than chlorobenzene. Reason: Chlorobenzene undergoes nucleophilic substitution by elimination addition mechanism while 4−nitrochloro benzene undergoes nucleophilic substitution by addition elimination mechanism.