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

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'.
The IUPAC name of the compound is hex-3-ene.