Diazonium Salts (Importance in Synthetic Organic Chemistry) NEET Questions

Organic Chemistry - Organic Compounds Containing Nitrogen

Diazonium Salts (Importance in Synthetic Organic Chemistry) MCQ Questions


1.
Diazonium salts are generally prepared from:
A.
Phenols
B.
Primary aromatic amines
C.
Secondary amines
D.
Tertiary amines
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ANSWER :
B. Primary aromatic amines
2.
The reaction of primary aromatic amines with nitrous acid at low temperatures (0–5°C) gives:
A.
Diazonium salts
B.
Amides
C.
Anilines
D.
Alcohols
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ANSWER :
A. Diazonium salts
3.
Diazonium salts are used in the synthesis of:
A.
Azo dyes
B.
Alcohols
C.
Acids
D.
Esters
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ANSWER :
A. Azo dyes
4.
The general formula of a diazonium salt is:
A.
ArN₂⁺X⁻
B.
RNH₂
C.
ArNH₂
D.
R–X
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ANSWER :
A. ArN₂⁺X⁻
5.
Benzene diazonium chloride reacts with phenol in basic medium to give:
A.
Azo dye
B.
Phenyl ether
C.
Chlorobenzene
D.
Aniline
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ANSWER :
A. Azo dye
6.
Which reagent is used for diazotization?
A.
HNO₃ and H₂SO₄
B.
NaNO₂ and HCl
C.
HCl and NH₄OH
D.
KOH and Cl₂
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ANSWER :
B. NaNO₂ and HCl