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The nitration of benzene is :...

The nitration of benzene is :

A

`S_(N^(1))` reaction

B

`S_(N^(2))` reaction

C

`S_(E^(1))` reaction

D

`S_(E^(2))` reaction

Text Solution

Verified by Experts

The correct Answer is:
D
The first or slow step involves the attack by an electrophile `(NO_(2)^(+))` with the formation of a transitory intermediate carbonium or arenium ion. In the second or fast step, hydrogen breaks as hydrogen breaks as hydrogen proten to complete the substitution.
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OP TANDON-BASIC PRINCIPLES OF ORGANIC COMPOUNDS (MECHANISM OF ORGANIC REACTIONS)-ILLUSTRATIONS OF OBJECTIVE QUESTIONS
  1. Among the following which acid is strongest?

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  2. Which of the following acid is strongest?

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  3. Which of the following alkyl groups has the maximum +I effect?

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  4. Considering the following alkene: The correct decreasing order of ...

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  5. The decreasing order of basic strength in {:(C(6)H(5)NH(2)",",(C(6)H...

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  6. Benzyne is:

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  7. Which of the following is true about the cycloheptatrienyl free radica...

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  8. Heterolysis of propane gives:

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  9. Which of the following pairs of ions is more stable? (a) CH(3)CH(2)O...

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  10. Which among the following compounds behave both as an electrophile as ...

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  11. Which of the following species is an ambident nucleophile?

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  12. Consider the following carbanions: Correct decreasing order of st...

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  13. Which one of the following carbocations are most stable?

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  14. Which of the following is not a nucleophile ?

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  15. Nucleophilicity of which species is least?

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  16. The nitration of benzene is :

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  17. Classify the following as electrophiles and nucleophiles: (a) CN^(-)...

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  18. Which of the following most readily undergoes E(2) elimination with a ...

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  19. In the reaction: the product formed will be:

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  20. Which of the following alkene is most statble?

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