Question

The IUPAC name of the compound CH₃−CH₂−CH=CH−CH₂−CH₃ is .

• A. hept-3-ene
• B. hex-3-ene
• C. pent-3-ene

Answer 1

The correct option is B hex-3-ene

C⁶H₃−C⁵H₂−C⁴H=C³H−C²H₂−C¹H₃

• The compound has six carbon atoms in its parent chain and hence the word root will be 'hex'.
• Also, there is a double bond between the third and the fourth carbon atom. So, the suffix here will be '-ene'.

Hence, the IUPAC name of the compound is hex-3-ene.