NEET2026ChemistryGeneral Organic ChemistryActual
The correct IUPAC name of the following compound is :
Options
- A3 -ethyl- 5 -methylheptane
- B2,4 -diethylhexane
- C3 -methyl- 5 -ethylheptane
- D3,5 -diethylhexane
Correct answer
A. 3 -ethyl- 5 -methylheptane
Step-by-step solution
1. Identify the longest continuous carbon chain: The longest chain in the given structure contains 7 carbon atoms. Therefore, the parent alkane is heptane. 2. Identify the substituents: There is an ethyl group ( -CH ₂ CH ₃ ) and a methyl group ( -CH ₃ ) attached to the main chain. 3. Number the carbon chain: - Numbering from left to right gives the substituents at positions 3 (ethyl) and 5 (methyl). - Numbering from right to left gives the substituents at positions 3 (methyl) and 5 (ethyl). 4. Apply the alphabetica