EASY
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Which will not go for diazotization?

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Important Questions on Amines

MEDIUM
Given below are two statements:
Statement I:
Primary aliphatic amines react with HNO2 to give unstable diazonium salts.
Statement II :
Primary aromatic amines react with HNO2 to form diazonium salts which are stable even above 300 K. In the light of the above statements, choose the most appropriate answer from the options given below 
EASY

What is the major product "P" of the following reaction ?

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MEDIUM
In the series of reaction, C6H5NH205oCNaNO2/HClXH2OHNO2Y+N2+HCl, X and Y, respectively, are:
EASY
Which of the following will be most stable diazonium salt RN2+X- ?
EASY

A and B in the following reactions are:

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HARD
The major product of the reaction is


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MEDIUM

In the reaction 

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the product Y is

MEDIUM

How will you bring about the following transformations?

Aniline to Benzene diazonium chloride

EASY

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In the above chemical reaction, intermediate "X" and reagent/condition "A" are :

MEDIUM

The correct sequence of correct reagents for the following transformation is :-

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EASY
When aniline is treated with sodium nitrite and hydrochloric acid at 0°C, it gives
HARD

In the following reaction sequence, [C] is :

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EASY
Which of the following will be the most stable diazonium salt RN2+X-?
HARD
An organic compound 'A' contains nitrogen and chlorine. It dissolves readily in water to give a solution that turns litmus red. Titration of compound 'A' with standard base indicates that the molecular weight of 'A' is 131±2. When a sample of 'A' is treated with aq. NaOH, a liquid separates which contains N but not Cl. Treatment of the obtained liquid with nitrous acid followed by phenol gives orange precipitate. The compound 'A' is
MEDIUM

Give the structures of A and B in the following sequence of reactions:

C6H5N2+Cl- CuCN A H2O/H+ B

MEDIUM

Explain the following :

Diazonium salts of aromatic amines are more stable than those of aliphatic amines.

EASY
Explain the reaction of Aniline with Nitrous acid.
EASY

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Consider the above reaction, the Product "P" is :

MEDIUM
What is the correct sequence of reagents used for converting nitrobenzene into m-dibromobenzene?

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HARD

 Three isomers A, B and C (mol. formula C8H11N  ) give the following results:

A and CDianotizationP+Q(ii) acidationKMnO4+H+(i) HydrolydsR product of A+S product of C

R has lower boiling point than S

BC6H5SO2Cl alkali-insoluble product

A, B and C, respectively are: