JAMB Chemistry 2021 Objective — Question 1

Question 1 of 41 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2021 Objective paper, with the correct answer and a full explanation.

How many isomers does hexane have?

• A. 2
• B. 3
• C. 5Correct
• D. 6

Explanation

Hexane (C₆H₁₄) has 5 structural isomers: (1) n-hexane; (2) 2-methylpentane; (3) 3-methylpentane; (4) 2,2-dimethylbutane; (5) 2,3-dimethylbutane.

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