Question

Which of the following compounds have the same word root as that of the following compound?

• A. Hexane and hex-1-ene
• B. Pentane and pent-2-ene
• C. Butane and but-2-ene
• D. Propane and prop-1-ene

Answer 1

The correct option is C Butane and but-2-ene

$\bullet$ The above compound has four carbon atoms and a triple bond. It's IUPAC name is But-1-yne.

$\bullet$ The word root for a compound with four carbon atoms is 'But'.

$\bullet$ Hence out of the given options, Butane and But-2-ene have the same word root.