Consider the following reaction: The product ' X ' is used:

in acid base titration as an indicator

in protein estimation as an alternative to ninhydrin

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Which of the following amines form $N -$ nitroso derivative when treated with $N a N O_{2}$ and $H C l$ ?

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Important Questions on Amines

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:

MEDIUM

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

For the identification of

β

-naphthol using dye test, it is necessary to use

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Coupling of benzene diazonium chloride with

1 - n a p h t h o l

in alkaline medium will give:

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Question Image

The final product $R$ is

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

The reagent (s) used for the conversion of benzene diazonium hydrogensulfate to benzene is/are

HARD

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Consider the following reaction:
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The product $' X^{'}$ is used:

HARD

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

The major product of the following reaction is

Question Image

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Action of

{NaNO}_{2}

with dilute

HCl

{ArNH}_{2}

yields

{ArN}_{2}^{+} {Cl}^{-} .

A similar reaction with cyclohexylamine will yield

MEDIUM

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Reaction of aniline with

N a N O_{2} +

dil.

H C l

0^{o} C

followed by reaction with

C u C N

yields

HARD

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

In a set of reactions $p -$ nitrotoluene yielded a product $E$

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Product $E$ would be:

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Which of the following is a Gattermann reaction?

HARD

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

A given nitrogen-containing aromatic compound

A

reacts with

S n / H C l

, followed by

H N O_{2}

to give an unstable compound

B

B

on treatment with phenol, forms a beautiful coloured compound

C

with the molecular formula

C_{12} H_{10} N_{2} O

. The structure of compound

A

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

The reaction,

Question Image is called

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

In the following reaction, the product

(A)

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

The reaction of Benzene diazonium chloride with aniline yields a yellow dye. The name of the yellow dye is

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

C_{6} H_{5} N_{2} Cl

in presence of

KCN

and

CuCN

gives an organic compound, which on acid hydrolysis gives

' X'

The compound

' X'

may be

EASY

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Which of the following is not a chromophore?

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Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with

H B F_{4}

. Which of the following conditions is correct about this reaction?

HARD

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

Products A and B formed in the following reactions are respectively:

Question Image

HARD

Chemistry>Organic Chemistry>Amines>Reactions of Diazonium Salts

In the reaction,

Question Image

The product

E

Which of the following amines form N- nitroso derivative when treated with NaNO2 and HCl ?

Important Questions on Amines

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Which of the following amines form $N -$ nitroso derivative when treated with $N a N O_{2}$ and $H C l$ ?