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Aniline does not give coupling reac...

Aniline does not give coupling reactions at pH `lt 5 ` because :

A

Diazonium salt converts into ` C_6 H_5 -N=N-Cl` which cannot couple

B

Aniline coverts into ` C_6 H_5 overset(o+) NH_3 Cl^(-)` , which cannot couple

C

both (1) and (2 ) .

D

Coupling only takes place in basic medium .

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The correct Answer is:
B
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VMC MODULES ENGLISH-AMINES-IMPECCABLE
  1. the major product of the following reaction is

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  2. What is the hybridisation state of N - atom in piperdine

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  3. Aniline does not give coupling reactions at pH lt 5 because :

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  4. Which of the following product will be obtained in the followin...

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  5. Which of the following amines will give carbylamine reaction?

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  6. Nitrobenzene on reduction in Zn + NH 4 Cl giveds :

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  7. Hinsberg's reagent is:

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  8. Which of the following amines will give carbylamine reaction?

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  9. Aniline reacts with excess of phosgene and KOH to form :

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  10. which of the indicated 'H' is most acidic ?

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  11. Correct order of acidic strength in following acids will be:

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  12. The magor product formed in the elimination reaction of is:

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  13. When CH(3)CH(2) CHCl(2) is treated with "NaNH"(2) , the product formed...

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  14. Which of the following is not the metamer of CH3CH2-underset(CH3)under...

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  16. Which one of the following amines is the weakest base?

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  20. In the Sandmeyer's reaction, -NH-X group of diazonium salt is replaced...

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