Question

The correct IUPAC name of \((\text{CH}_3)_3\text{C–CH}_2\text{Br}\) is:

• A. 2,2-Dimethyl-2-bromopropane
• B. 1-Bromo-2,2,2-trimethylethane
• C. 2-Bromo-1,1,1-trimethylethane
• D. 1-Bromo-2,2-dimethylpropane

Hint:

While naming halogenated compounds, always give the halogen the lowest possible number. Side chains like methyl are named afterward with locants.

Answer 1

The Correct Option is D

Structure: \[ (\text{CH}_3)_3\text{C–CH}_2\text{Br} \Rightarrow \text{This is a 4-carbon chain with a Br on C1 and two methyl groups on C2} \] Numbering should begin from the end closer to Br. So the parent chain is propane (3 carbon), and two methyl groups are on the second carbon. Therefore, correct name is: \[ \boxed{1\text{-Bromo-2,2-dimethylpropane}} \]