Chemistry-IUPAC Nomenclature
NEET Chemistry IUPAC Nomenclature MCQ Question
Type: MCQ-numerical-Hard-Class 11
What is the IUPAC name for the compound with the structure: CH3-CH(CH3)-CH2-CH2-CH3?
A
2-Methylpentane
B
3-Methylpentane
C
2-Ethylbutane
D
3-Ethylbutane
Correct Answer
Option A
Detailed Explanation
The correct IUPAC name is determined by identifying the longest carbon chain and numbering it in such a way that the substituents get the lowest possible numbers. The longest chain here is five carbons, making it pentane, and the methyl group is on the second carbon, resulting in 2-Methylpentane.
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