IUPAC Nomenclature NEET Questions

Organic Chemistry - Hydrocarbons

IUPAC Nomenclature MCQ Questions


7.
The IUPAC name of isopentane is:
A.
2,2-Dimethylpropane
B.
2-Methylbutane
C.
n-Pentane
D.
3-Methylbutane
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ANSWER :
B. 2-Methylbutane
8.
What is the IUPAC name of CH3-CH(CH3)-CH2-CH2-CH(CH3)-CH3?
A.
2,5-Dimethylhexane
B.
3,6-Dimethylhexane
C.
2,5-Dimethylpentane
D.
2-Methyl-5-methylhexane
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ANSWER :
A. 2,5-Dimethylhexane
9.
The IUPAC name of CH3-CH2-CH(CH3)-CH(C2H5)-CH2-CH3 is:
A.
4-Ethyl-3-methylhexane
B.
3-Ethyl-4-methylhexane
C.
3-Methyl-4-ethylhexane
D.
2-Ethyl-3-methylpentane
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ANSWER :
B. 3-Ethyl-4-methylhexane
10.
The IUPAC name of (CH3)3C-CH2-C(CH3)3 is:
A.
Hexamethylethane
B.
2,2,4,4-Tetramethylbutane
C.
2,2,4,4-Tetramethylpentane
D.
2,2,3,3-Tetramethylpentane
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ANSWER :
C. 2,2,4,4-Tetramethylpentane
11.
The IUPAC name of (CH3CH2)2CHCH3 is:
A.
2-Methylpentane
B.
2-Ethylbutane
C.
3-Ethylpropane
D.
3-Methylpentane
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ANSWER :
D. 3-Methylpentane
12.
The compound CH3-CH2-C(CH3)2-CH(CH3)-CH3 has the IUPAC name:
A.
3,3-Dimethyl-2-methylpentane
B.
2,3,3-Trimethylbutane
C.
3,3,4-Trimethylpentane
D.
2,3,3-Trimethylpentane
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ANSWER :
D. 2,3,3-Trimethylpentane