What is the correct IUPAC name of the following compound? Cl-CH₂-CH₂-CH=CH-CH(Br)-CH₃

Step-by-step solution

The parent chain is a 6-carbon alkene (hexene). The double bond is at C3 from both ends. Numbering from left-to-right gives substituents at C1 (chloro) and C5 (bromo), resulting in the locant set 1, 5 . Numbering from right-to-left gives substituents at C2 (bromo) and C6 (chloro), resulting in the locant set 2, 6 . According to the lowest locant rule, the set 1, 5 is preferred over 2, 6 because the first point of difference gives a lower number (1 Finally, the substituents are arranged in alphabetical order: 'bromo