Statement I: Nitration of benzene involves the following step

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Q.
Given below are two statements:

Statement I: Nitration of benzene involves the following step –

Statement II: Use of Lewis base promotes the electrophilic substitution of benzene.

In the light of the above statements, choose the most appropriate answer from the options given below: [2024]

1 Statement I is correct but Statement II is incorrect

2 Both Statement I and Statement II are correct

3 Statement I is incorrect but Statement II is correct

4 Both Statement I and Statement II are incorrect

Ans.
(1)

In nitration of benzene, commonly used reagent is conc. ( $H_{2} {SO}_{4} + {HNO}_{3}$ ). This generates electrophile as follows:

In electrophilic substitution of benzene, Lewis acid helps in generation of electrophile, not Lewis base.

Solution

Q.
Given below are two statements:

Statement I: Nitration of benzene involves the following step –

Statement II: Use of Lewis base promotes the electrophilic substitution of benzene.

In the light of the above statements, choose the most appropriate answer from the options given below: [2024]

1 Statement I is correct but Statement II is incorrect

2 Both Statement I and Statement II are correct

3 Statement I is incorrect but Statement II is correct

4 Both Statement I and Statement II are incorrect

Ans.
(1)

In nitration of benzene, commonly used reagent is conc. ( $H_{2} {SO}_{4} + {HNO}_{3}$ ). This generates electrophile as follows:

In electrophilic substitution of benzene, Lewis acid helps in generation of electrophile, not Lewis base.

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Solution

Q. Given below are two statements: Statement I: Nitration of benzene involves the following step – Statement II: Use of Lewis base promotes the electrophilic substitution of benzene. In the light of the above statements, choose the most appropriate answer from the options given below: [2024]

1 Statement I is correct but Statement II is incorrect

2 Both Statement I and Statement II are correct

3 Statement I is incorrect but Statement II is correct

4 Both Statement I and Statement II are incorrect

Ans. (1) In nitration of benzene, commonly used reagent is conc. (H2SO4+HNO3). This generates electrophile as follows: In electrophilic substitution of benzene, Lewis acid helps in generation of electrophile, not Lewis base.

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Q.
Given below are two statements:

Statement I: Nitration of benzene involves the following step –

Statement II: Use of Lewis base promotes the electrophilic substitution of benzene.

In the light of the above statements, choose the most appropriate answer from the options given below: [2024]

Ans.
(1)

In nitration of benzene, commonly used reagent is conc. ( $H_{2} {SO}_{4} + {HNO}_{3}$ ). This generates electrophile as follows:

In electrophilic substitution of benzene, Lewis acid helps in generation of electrophile, not Lewis base.