Aromatic Hydrocarbons (Nomenclature, Benzene - Structure and Aromaticity:...) NEET Questions

Organic Chemistry - Hydrocarbons

Aromatic Hydrocarbons (Nomenclature, Benzene - Structure and Aromaticity:...) MCQ Questions


1.
The IUPAC name of toluene is:
A.
Methylbenzene
B.
Benzylene
C.
Benzylhydride
D.
Phenylmethane
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ANSWER :
A. Methylbenzene
2.
The IUPAC name of o-xylene is:
A.
1,3-Dimethylbenzene
B.
1,4-Dimethylbenzene
C.
1,1-Dimethylbenzene
D.
1,2-Dimethylbenzene
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ANSWER :
D. 1,2-Dimethylbenzene
3.
The IUPAC name of m-xylene is:
A.
2,4-Dimethylbenzene
B.
1,4-Dimethylbenzene
C.
1,3-Dimethylbenzene
D.
1,2-Dimethylbenzene
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ANSWER :
C. 1,3-Dimethylbenzene
4.
The IUPAC name of p-xylene is:
A.
1,2-Dimethylbenzene
B.
1,3-Dimethylbenzene
C.
2,5-Dimethylbenzene
D.
1,4-Dimethylbenzene
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ANSWER :
D. 1,4-Dimethylbenzene
5.
Two substituents on adjacent carbons of a benzene ring (positions 1 and 2) are designated as:
A.
ortho (o-)
B.
ipso
C.
meta (m-)
D.
para (p-)
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ANSWER :
A. ortho (o-)
6.
The 1,3- relationship of two substituents on a benzene ring is referred to as:
A.
para
B.
meta
C.
ipso
D.
ortho
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ANSWER :
B. meta