Diazonium Salts (Importance in Synthetic Organic Chemistry) NEET Questions

Organic Chemistry - Organic Compounds Containing Nitrogen

Diazonium Salts (Importance in Synthetic Organic Chemistry) MCQ Questions


7.
In diazotization, temperature is maintained between 0–5°C to:
A.
Prevent decomposition
B.
Favor oxidation
C.
Increase yield
D.
None
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ANSWER :
A. Prevent decomposition
8.
Diazonium salts are unstable at:
A.
High temperature
B.
Low temperature
C.
Neutral pH
D.
All of the above
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ANSWER :
A. High temperature
9.
Benzene diazonium chloride reacts with CuCN to form:
A.
Phenol
B.
Chlorobenzene
C.
Aniline
D.
Benzonitrile
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ANSWER :
D. Benzonitrile
10.
Benzene diazonium chloride is treated with H₃PO₂ and water to give:

NEET - 2019

A.
Aniline
B.
Phenol
C.
Chlorobenzene
D.
Benzene
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ANSWER :
D. Benzene
11.
Sandmeyer reaction involves:
A.
NaNO₂/CuCl
B.
CuSO₄/KCN
C.
FeCl₃/H₂O₂
D.
CuCl/CuBr
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ANSWER :
D. CuCl/CuBr
12.
Benzene diazonium chloride reacts with CuBr to form:
A.
Benzoic acid
B.
Phenol
C.
Chlorobenzene
D.
Bromobenzene
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ANSWER :
D. Bromobenzene