322843
Assertion : Chlorobenzene is more reactive than p-chloroanisole to nucleophilic substitution reaction. Reason : Greater the stability of carbanion, greater is its ease of formation and hence, more reactive is the aryl halide.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
On comparing the relative stabilities of carbanion of chlorobenzene and anisole. The electron donating group \(\left(\mathrm{OCH}_{3}\right)\) in anisole tends to intensify the negative charge relative to carbanion in chlorobenzene. Thus. pchloroanisole is less reactive than chlorobenzene. Hence option (1) is correct.
CHXII10:HALOALKANES AND HALOARENES
322844
Assertion : Carbon-halogen bond in aryl halide has partial double bond character. Reason : Aryl halides undergo nucleophilic substitution easily.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbon-halogen bond in aryl halide has partial double bond character due to the \(\mathrm{sp}^{2}\) hybridization of carbon atom. Aryl halides undergo nucleophilic substitution with difficulty. So option (3) is correct.
CHXII10:HALOALKANES AND HALOARENES
322845
What is the product formed when side chain chlorination of toluene is carried out followed by acid hydrolysis at \(373 \mathrm{~K}\) ?
1 Benzaldehyde
2 Benzal chloride
3 Chlorobenzene
4 Benzoic acid
Explanation:
MHTCET - 2021
CHXII10:HALOALKANES AND HALOARENES
322846
Match the reactions in column I with their reaction conditions given in column II and mark the appropriate choice.
1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - R, B - P, C - Q
4 A - Q, B - P, C - R
Explanation:
The presence of EWG \({\mathrm{\left(-\mathrm{NO}_{2}\right)}}\) increases the NSR tendency on halo benzene. Thus, as the number of \({\mathrm{-\mathrm{NO}_{2}}}\) group increases at ortho and para positions, the reaction gets favourable even in normal conditions. So, the correct option is (1)
322843
Assertion : Chlorobenzene is more reactive than p-chloroanisole to nucleophilic substitution reaction. Reason : Greater the stability of carbanion, greater is its ease of formation and hence, more reactive is the aryl halide.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
On comparing the relative stabilities of carbanion of chlorobenzene and anisole. The electron donating group \(\left(\mathrm{OCH}_{3}\right)\) in anisole tends to intensify the negative charge relative to carbanion in chlorobenzene. Thus. pchloroanisole is less reactive than chlorobenzene. Hence option (1) is correct.
CHXII10:HALOALKANES AND HALOARENES
322844
Assertion : Carbon-halogen bond in aryl halide has partial double bond character. Reason : Aryl halides undergo nucleophilic substitution easily.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbon-halogen bond in aryl halide has partial double bond character due to the \(\mathrm{sp}^{2}\) hybridization of carbon atom. Aryl halides undergo nucleophilic substitution with difficulty. So option (3) is correct.
CHXII10:HALOALKANES AND HALOARENES
322845
What is the product formed when side chain chlorination of toluene is carried out followed by acid hydrolysis at \(373 \mathrm{~K}\) ?
1 Benzaldehyde
2 Benzal chloride
3 Chlorobenzene
4 Benzoic acid
Explanation:
MHTCET - 2021
CHXII10:HALOALKANES AND HALOARENES
322846
Match the reactions in column I with their reaction conditions given in column II and mark the appropriate choice.
1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - R, B - P, C - Q
4 A - Q, B - P, C - R
Explanation:
The presence of EWG \({\mathrm{\left(-\mathrm{NO}_{2}\right)}}\) increases the NSR tendency on halo benzene. Thus, as the number of \({\mathrm{-\mathrm{NO}_{2}}}\) group increases at ortho and para positions, the reaction gets favourable even in normal conditions. So, the correct option is (1)
322843
Assertion : Chlorobenzene is more reactive than p-chloroanisole to nucleophilic substitution reaction. Reason : Greater the stability of carbanion, greater is its ease of formation and hence, more reactive is the aryl halide.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
On comparing the relative stabilities of carbanion of chlorobenzene and anisole. The electron donating group \(\left(\mathrm{OCH}_{3}\right)\) in anisole tends to intensify the negative charge relative to carbanion in chlorobenzene. Thus. pchloroanisole is less reactive than chlorobenzene. Hence option (1) is correct.
CHXII10:HALOALKANES AND HALOARENES
322844
Assertion : Carbon-halogen bond in aryl halide has partial double bond character. Reason : Aryl halides undergo nucleophilic substitution easily.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbon-halogen bond in aryl halide has partial double bond character due to the \(\mathrm{sp}^{2}\) hybridization of carbon atom. Aryl halides undergo nucleophilic substitution with difficulty. So option (3) is correct.
CHXII10:HALOALKANES AND HALOARENES
322845
What is the product formed when side chain chlorination of toluene is carried out followed by acid hydrolysis at \(373 \mathrm{~K}\) ?
1 Benzaldehyde
2 Benzal chloride
3 Chlorobenzene
4 Benzoic acid
Explanation:
MHTCET - 2021
CHXII10:HALOALKANES AND HALOARENES
322846
Match the reactions in column I with their reaction conditions given in column II and mark the appropriate choice.
1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - R, B - P, C - Q
4 A - Q, B - P, C - R
Explanation:
The presence of EWG \({\mathrm{\left(-\mathrm{NO}_{2}\right)}}\) increases the NSR tendency on halo benzene. Thus, as the number of \({\mathrm{-\mathrm{NO}_{2}}}\) group increases at ortho and para positions, the reaction gets favourable even in normal conditions. So, the correct option is (1)
322843
Assertion : Chlorobenzene is more reactive than p-chloroanisole to nucleophilic substitution reaction. Reason : Greater the stability of carbanion, greater is its ease of formation and hence, more reactive is the aryl halide.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
On comparing the relative stabilities of carbanion of chlorobenzene and anisole. The electron donating group \(\left(\mathrm{OCH}_{3}\right)\) in anisole tends to intensify the negative charge relative to carbanion in chlorobenzene. Thus. pchloroanisole is less reactive than chlorobenzene. Hence option (1) is correct.
CHXII10:HALOALKANES AND HALOARENES
322844
Assertion : Carbon-halogen bond in aryl halide has partial double bond character. Reason : Aryl halides undergo nucleophilic substitution easily.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Carbon-halogen bond in aryl halide has partial double bond character due to the \(\mathrm{sp}^{2}\) hybridization of carbon atom. Aryl halides undergo nucleophilic substitution with difficulty. So option (3) is correct.
CHXII10:HALOALKANES AND HALOARENES
322845
What is the product formed when side chain chlorination of toluene is carried out followed by acid hydrolysis at \(373 \mathrm{~K}\) ?
1 Benzaldehyde
2 Benzal chloride
3 Chlorobenzene
4 Benzoic acid
Explanation:
MHTCET - 2021
CHXII10:HALOALKANES AND HALOARENES
322846
Match the reactions in column I with their reaction conditions given in column II and mark the appropriate choice.
1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - R, B - P, C - Q
4 A - Q, B - P, C - R
Explanation:
The presence of EWG \({\mathrm{\left(-\mathrm{NO}_{2}\right)}}\) increases the NSR tendency on halo benzene. Thus, as the number of \({\mathrm{-\mathrm{NO}_{2}}}\) group increases at ortho and para positions, the reaction gets favourable even in normal conditions. So, the correct option is (1)
