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Bromination of aniline can only give ...

Bromination of aniline can only give ortho para substituation because

A

`-NH_(2)` group is powerful activating group

B

`-NH_(2)` is less powerful

C

Benzene ring is active

D

Benzene ring is less active

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The correct Answer is:
A
Electron doN/Ating group and resoN/Ating structure
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Although —NH_(2) group is an ortho and para directing group, nitration of aniline gives along with ortho and para derivatives, meta derivative also.

Bromine water reacts with aniline to give

The bromination of aniline in presence of water produces :

Benzene ring in aniline is highly activated. This is due to the sharing of lone pair of nitrogen with the ring which results in increase in the electron density on the ring and hence facilitates the electrophilic attack. The substitution mainly takes place at ortho and para positions because electron density is more at ortho and para positions. On reaction with aqueous bromine all the ortho and para positions get substituted resulting in the formation of 2,4,6-tribromoaniline. To get a monobromo compound, the amino group is acetylated before bromination. After bromination, the bromoacetanilide is acid hydrolysed to give the desired halogenated amine. In the following questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices: Assertion (A): Benzene ring is aniline is highly deactivated. Reason (R): In aniline, the sharing of lone pair of nitrogen with the ring increases the electron density on the ring.

Benzene ring in aniline is highly activated. This is due to the sharing of lone pair of nitrogen with the ring which results in increase in the electron density on the ring and hence facilitates the electrophilic attack. The substitution mainly takes place at ortho and para positions because electron density is more at ortho and para positions. On reaction with aqueous bromine all the ortho and para positions get substituted resulting in the formation of 2,4,6-tribromoaniline. To get a monobromo compound, the amino group is acetylated before bromination. After bromination, the bromoacetanilide is acid hydrolysed to give the desired halogenated amine. In the following questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices: Assertion (A): In aniline -NH2 group facilitates the electrophilic attack. Reason (R): It is due to decrease in electron density on the ring.

MARVEL PUBLICATION-ORGANIC COMPOUNDS CONTAINGING NITROGEN -TEST YOUR GRASP
  1. Bromination of aniline can only give ortho para substituation be...

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  2. IUPAC name of ethyl amine is

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  3. Acetaldoxime on reduction by Na and alcohol produces

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  4. (CH(3))(3) N is

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  5. Ethyl amine reacts with which of the following to give ethyl am...

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  6. Trimethyl amine is less basic than methyl amine because

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  7. n-butyl amine and isobuty amine are

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  8. The true statement about ethylamine is

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  9. The reaction which is given only by primary amines is

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  10. A amine produces yellow oily compound on reaction with nitrous ...

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  11. Which of the following produces diacetyl derivative on reaction w...

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  12. According to Lewis concept R- NH(2)

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  13. Which of the following is quarternary ammonium salt ?

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  14. Methylation of methyl amine gives 1^(st) product as

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  15. Which of the following is absorbed by dilute HCI ?

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  16. Which of the following produces HNO(2) acid ?

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  17. The amine which reacts with NaNO2 and dil. HCl to give yellow oily com...

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  18. Ethyl bromide reacts with excess of alcoholic ammonia the majo...

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  19. When ethylamine is heated with excess of acetic anhydride it giv...

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  20. Dimethanamine is the IUPAC name of

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  21. Methyl amine is obtained by reduction of nitromethane by using w...

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