318258
The correct order of reactivity in electrophilic substitution reaction of the following compounds is
1 (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
4 (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (IV)
Explanation:
Correct order of electrophilic substitution reaction of the given compound is, Electron donating groups enhance the electrophilic substitution reaction.So, the correct option is (3).
JEE Main - 2024
CHXI13:HYDROCARBONS
318259
Statement A : In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the meta position. Statement B : Aryl halides are moderately deactivating.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the ortho and/or para position. This is because, even though aryl halides shows \({\text{ - I}}\) -effect, the electron density on ortho and para positions is greater than that at meta position due to resonance. Hence, the incoming electrophile is directed at the ortho and/or para position. So, the option (2) is correct.
CHXI13:HYDROCARBONS
318260
The effective electrophile in aromatic sulphonation is
1 \(\mathrm{HSO}_{4}^{-}\)
2 \(\mathrm{SO}_{2}\)
3 \(\mathrm{SO}_{2}^{+}\)
4 \(\mathrm{SO}_{3}\)
Explanation:
CHXI13:HYDROCARBONS
318261
Nitrobenzene can be prepared by heating benzene with a mixture of concentrated \(\mathrm{HNO}_{3}\) and concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). In the nitrating mixture, \(\mathrm{HNO}_{3}\) acts as
1 A base
2 An acid
3 A catalyst
4 A reducing agent
Explanation:
\({\text{HN}}{{\text{O}}_{\text{3}}}\) acts as a base during nitration.
318258
The correct order of reactivity in electrophilic substitution reaction of the following compounds is
1 (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
4 (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (IV)
Explanation:
Correct order of electrophilic substitution reaction of the given compound is, Electron donating groups enhance the electrophilic substitution reaction.So, the correct option is (3).
JEE Main - 2024
CHXI13:HYDROCARBONS
318259
Statement A : In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the meta position. Statement B : Aryl halides are moderately deactivating.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the ortho and/or para position. This is because, even though aryl halides shows \({\text{ - I}}\) -effect, the electron density on ortho and para positions is greater than that at meta position due to resonance. Hence, the incoming electrophile is directed at the ortho and/or para position. So, the option (2) is correct.
CHXI13:HYDROCARBONS
318260
The effective electrophile in aromatic sulphonation is
1 \(\mathrm{HSO}_{4}^{-}\)
2 \(\mathrm{SO}_{2}\)
3 \(\mathrm{SO}_{2}^{+}\)
4 \(\mathrm{SO}_{3}\)
Explanation:
CHXI13:HYDROCARBONS
318261
Nitrobenzene can be prepared by heating benzene with a mixture of concentrated \(\mathrm{HNO}_{3}\) and concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). In the nitrating mixture, \(\mathrm{HNO}_{3}\) acts as
1 A base
2 An acid
3 A catalyst
4 A reducing agent
Explanation:
\({\text{HN}}{{\text{O}}_{\text{3}}}\) acts as a base during nitration.
318258
The correct order of reactivity in electrophilic substitution reaction of the following compounds is
1 (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
4 (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (IV)
Explanation:
Correct order of electrophilic substitution reaction of the given compound is, Electron donating groups enhance the electrophilic substitution reaction.So, the correct option is (3).
JEE Main - 2024
CHXI13:HYDROCARBONS
318259
Statement A : In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the meta position. Statement B : Aryl halides are moderately deactivating.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the ortho and/or para position. This is because, even though aryl halides shows \({\text{ - I}}\) -effect, the electron density on ortho and para positions is greater than that at meta position due to resonance. Hence, the incoming electrophile is directed at the ortho and/or para position. So, the option (2) is correct.
CHXI13:HYDROCARBONS
318260
The effective electrophile in aromatic sulphonation is
1 \(\mathrm{HSO}_{4}^{-}\)
2 \(\mathrm{SO}_{2}\)
3 \(\mathrm{SO}_{2}^{+}\)
4 \(\mathrm{SO}_{3}\)
Explanation:
CHXI13:HYDROCARBONS
318261
Nitrobenzene can be prepared by heating benzene with a mixture of concentrated \(\mathrm{HNO}_{3}\) and concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). In the nitrating mixture, \(\mathrm{HNO}_{3}\) acts as
1 A base
2 An acid
3 A catalyst
4 A reducing agent
Explanation:
\({\text{HN}}{{\text{O}}_{\text{3}}}\) acts as a base during nitration.
318258
The correct order of reactivity in electrophilic substitution reaction of the following compounds is
1 (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (IV)
4 (II) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (IV)
Explanation:
Correct order of electrophilic substitution reaction of the given compound is, Electron donating groups enhance the electrophilic substitution reaction.So, the correct option is (3).
JEE Main - 2024
CHXI13:HYDROCARBONS
318259
Statement A : In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the meta position. Statement B : Aryl halides are moderately deactivating.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
In the electrophilic substitution of aryl halides, the incoming electrophile gets attached to the ortho and/or para position. This is because, even though aryl halides shows \({\text{ - I}}\) -effect, the electron density on ortho and para positions is greater than that at meta position due to resonance. Hence, the incoming electrophile is directed at the ortho and/or para position. So, the option (2) is correct.
CHXI13:HYDROCARBONS
318260
The effective electrophile in aromatic sulphonation is
1 \(\mathrm{HSO}_{4}^{-}\)
2 \(\mathrm{SO}_{2}\)
3 \(\mathrm{SO}_{2}^{+}\)
4 \(\mathrm{SO}_{3}\)
Explanation:
CHXI13:HYDROCARBONS
318261
Nitrobenzene can be prepared by heating benzene with a mixture of concentrated \(\mathrm{HNO}_{3}\) and concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\). In the nitrating mixture, \(\mathrm{HNO}_{3}\) acts as
1 A base
2 An acid
3 A catalyst
4 A reducing agent
Explanation:
\({\text{HN}}{{\text{O}}_{\text{3}}}\) acts as a base during nitration.
