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In the diazotisation of anline with sodi...

In the diazotisation of anline with sodium nitrite and hydrochloride acid, an excess of hydrochloric acid is used primarily to

A

supress the concentration of free aniline available for coupling.

B

supress hydrolysis of phenol.

C

ensure a stoichiometric amount of nitrous acid.

D

neutralise the base liberated.

Text Solution

Verified by Experts

The correct Answer is:
A
Excess of `HCl` is used to convert free aniline to aniline hydrochloride otherwise free aniline would undergo coupling reaction with benzenediazonium chloride.
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DISHA PUBLICATION-AMINES-Exercise - 1 : Concept Builder (Topicwise)(TOPIC - 1 : Amines and Amides)
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  6. When benzene diazonium chloride is treated with cuprous chloride in H...

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  9. The alkene formed as a major product in the above elimination reaction...

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  10. Predict about the relative boiling point of the following two amines.

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  11. Identify Z in the following sequence of reactions - CH(3)COONH(4) ov...

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  12. Which of the following will produce isopropyl amine - (I) (CH(3))(2...

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  15. Which of the following does not give N - ethyl cyclopentylamine as maj...

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  16. Which of the following compounds is an enamine?

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  17. Which of the following reaction will not given N, N - dimethyl benzami...

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  18. A compound 'Z' reacts with three moles of CH(3)I and gives a product w...

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