MHT CET Medical202621 April 2026Morning ShiftChemistryGeneral Organic ChemistryActual
What is IUPAC name of ( CH ₃)₃ CBr ?
Options
- A2-bromopropane
- B2-bromo-2-methylpropane
- C1-bromobutane
- Dtert-butyl bromide
Correct answer
B. 2-bromo-2-methylpropane
Step-by-step solution
The given compound is ( CH ₃)₃ CBr . Its expanded structure is CH ₃- C ( CH ₃)( Br )- CH ₃ . The longest continuous carbon chain consists of 3 carbon atoms, which corresponds to the parent alkane propane. Numbering the chain from either end, the substituents are attached to the second carbon atom. The substituents present at the second carbon are a bromo group and a methyl group. Arranging the substituents in alphabetical order, the prefix becomes 2-bromo-2-methyl. Combining this with the parent chain name, the IUP