Home Chemistry IUPAC Nomenclature Structural Isomerism Which of the following pairs of compounds ar…
Chemistry IUPAC Nomenclature Structural Isomerism Single Correct MCQ
Published on: August 14, 2026

Which of the following pairs of compounds are chain isomers.

A
Isobutyl alcohol and s-pentyl alcohol
B
Isobutyl alcohol and t-butyl alcohol
C
Secpentyl alcohol and neopentyl alcohol
D
Ethyl alcohol and ethylene glycol

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The correct answer is:
C

Isobutyl alcohol and sec-pentyl alcohol are homologous.

Isobutyl alcohol and ter-butyl alcohol are position isomers.

Sec-pentyl alcohol and neo pentyl alcohol are chain isomers.

Ethyl alcohol and ethyleneglycol have no relation of each other because ethyl alcohol is monohydric alcohol while ethyleneglycol is dihydric alcohol.

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