Question

The IUPAC name of isobutyl bromide is

• A. 2-methyl-1-bromo propane
• B. 1-bromo-2-methyl propane
• C. 2-bromo-2-methyl propane
• D. 2-bromo-1-methyl propane

Hint:

In IUPAC nomenclature, the parent chain is numbered to give the lowest possible number to the substituent.

Answer 1

The Correct Option is B

Step 1: Understanding the structure of isobutyl bromide.
Isobutyl bromide consists of a 3-carbon chain (propane) with a bromine atom attached to the first carbon and a methyl group attached to the second carbon. The IUPAC name reflects this structure.
Step 2: Conclusion.
The correct answer is (B) 1-bromo-2-methyl propane.