NEET2026ChemistryChapterActual
Identify the correct IUPAC name for the given organic compound.
Options
- A6 -bromo- 2 -chloro- 4 -methylheptan- 3 -one
- B2 -bromo- 6 -chloro- 4 -methylheptan- 5 -one
- C2 -chloro- 4 -methyl- 6 -bromoheptan- 3 -one
- D6 -bromo- 4 -methyl- 2 -chloroheptan- 3 -one
Correct answer
A. 6 -bromo- 2 -chloro- 4 -methylheptan- 3 -one
Step-by-step solution
According to IUPAC nomenclature rules, the principal functional group is the ketone ( -C=O ), which must receive the lowest possible locant. The longest carbon chain containing the ketone group has 7 carbon atoms, so the parent chain is heptane. Numbering the chain from left to right places the ketone at position 3 . Numbering from right to left places it at position 5 . Therefore, the correct numbering is from left to right. The substituents and their positions are: - A chloro group at C- 2 - A methyl group at C-