Classification of Isomerism NEET Questions

Organic Chemistry - Hydrocarbons

Classification of Isomerism MCQ Questions


1.
Compounds having the same molecular formula but different structures or spatial arrangements of atoms are called:
A.
Polymers
B.
Isomers
C.
Homologues
D.
Allotropes
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ANSWER :
B. Isomers
2.
The phenomenon in which two or more compounds have the same molecular formula but different properties is called:
A.
Polymerization
B.
Allotropy
C.
Isomerism
D.
Homology
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ANSWER :
C. Isomerism
3.
Isomerism is broadly classified into two main categories, namely:
A.
Structural (constitutional) isomerism and stereoisomerism
B.
Chain isomerism and position isomerism only
C.
Functional isomerism and metamerism only
D.
Optical isomerism and geometrical isomerism only
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ANSWER :
A. Structural (constitutional) isomerism and stereoisomerism
4.
Structural isomers differ from each other mainly in their:
A.
Total number of atoms present
B.
Order in which atoms are bonded to one another (connectivity)
C.
Three-dimensional spatial arrangement only
D.
Molecular formula
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ANSWER :
B. Order in which atoms are bonded to one another (connectivity)
5.
Stereoisomers differ from each other mainly in their:
A.
Total number of carbon atoms
B.
Order in which atoms are bonded to each other
C.
Molecular formula
D.
Spatial (three-dimensional) arrangement of atoms, while the connectivity remains the same
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ANSWER :
D. Spatial (three-dimensional) arrangement of atoms, while the connectivity remains the same
6.
Which of the following is an example of a sub-type of structural isomerism, commonly observed among hydrocarbons?
A.
Geometrical isomerism
B.
Chain isomerism
C.
Conformational isomerism
D.
Optical isomerism
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ANSWER :
B. Chain isomerism