Question

Which of the following are constitutional isomers of heptane? Select all that apply.

a) 2-Methylhexane
b) 3-Methylhexane
c) Octane
d) Cyclohexane
e) Pentane

Answer 1

3-methylhexane, cyclohexane, and pentane are constitutional isomers of heptane.

Step-by-step explanation:

Constitutional isomers are compounds that have the same molecular formula but differ in the connectivity of their atoms. To determine which of the given compounds are constitutional isomers of heptane, we need to compare their molecular formulas and identify any differences in connectivity. Heptane has the molecular formula C7H16.

Among the given compounds, (b) 3-methylhexane, (d) cyclohexane, and (e) pentane are constitutional isomers of heptane. (a) 2-methylhexane and (c) octane have different molecular formulas and are not constitutional isomers of heptane.