Amines(Nomenclature, Classification Structure, Basic Character,...) NEET Questions

Organic Chemistry - Organic Compounds Containing Nitrogen

Amines(Nomenclature, Classification Structure, Basic Character,...) MCQ Questions


7.
Amines derived by attaching alkyl or aryl groups directly to a benzene ring, such as aniline, are classified as:
A.
Aromatic amines
B.
Alicyclic amines
C.
Heterocyclic amines
D.
Aliphatic amines
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ANSWER :
A. Aromatic amines
8.
Amines in which the nitrogen atom is attached only to alkyl groups (and not directly to an aromatic ring) are classified as:
A.
Quaternary amines
B.
Aromatic amines
C.
Aliphatic amines
D.
Heterocyclic amines only
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ANSWER :
C. Aliphatic amines
9.
In the IUPAC nomenclature of simple primary amines, the compound is named by adding the suffix '-amine' to the name of the:
A.
Corresponding alkane, after replacing the terminal 'e' (e.g., methanamine, ethanamine)
B.
Corresponding alcohol name directly
C.
Corresponding aldehyde name directly
D.
Corresponding acid name directly
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ANSWER :
A. Corresponding alkane, after replacing the terminal 'e' (e.g., methanamine, ethanamine)
10.
In common (trivial) nomenclature, primary amines are generally named by adding the suffix '-amine' to the name of the:
A.
Corresponding carboxylic acid
B.
Alkyl group attached to the nitrogen atom
C.
Corresponding aldehyde
D.
Entire molecular formula of the compound
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ANSWER :
B. Alkyl group attached to the nitrogen atom
11.
In the IUPAC system, secondary and tertiary amines with identical alkyl groups are named using the prefixes 'di' and 'tri' along with the locant 'N' to indicate substitution on nitrogen. For example, (CH₃)₂NH is named:
A.
N,N-Dimethylamine
B.
Methylethanamine
C.
Dimethylmethanamine
D.
N-Methylmethanamine
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ANSWER :
D. N-Methylmethanamine
12.
The common name for the aromatic amine C₆H₅NH₂ is:
A.
Phenol
B.
Benzamide
C.
Aniline
D.
Toluene
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ANSWER :
C. Aniline