
Concept explainers
Interpretation:
Whether cyclopentane is an isomer of pentane or not needs to be explained.
Concept introduction:
The molecules having same molecular formula but differ in structural arrangement of atoms are said to be isomers of each other.

Answer to Problem 82A
Cyclopentane is not an isomer of pentane.
Explanation of Solution
In order to determine whether cyclopentane is an isomer of pentane or not, the structures of both the compounds are drawn and their molecular formulas are written as:
Since, the molecular formula of cyclopentane and pentane are different so, cyclopentane is not an isomer of pentane.
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