Question:
The IUPAC name of compound
The IUPAC name of compound
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The compound is a five-membered ring with an OH group and an ethyl group on adjacent carbons.
Updated On: Nov 12, 2026
- 2-Ethylpentanol
- 2-Ethylpentanal
- 2-Ethylcyclopentanol
- Heptan-1-ol
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
The parent is the five-membered carbon ring, cyclopentane. The -OH group is the principal group, so the suffix is -ol.
Step 2: Numbering
The ring carbon with -OH is C-1. Numbering towards the neighbouring carbon that has the ethyl group gives that carbon locant 2.
Step 3: Name
The name is 2-ethylcyclopentan-1-ol, usually written 2-ethylcyclopentanol.
Final Answer:
The IUPAC name is 2-ethylcyclopentanol. \[ \boxed{\text{(C) }\text{2-Ethylcyclopentanol}} \]
The parent is the five-membered carbon ring, cyclopentane. The -OH group is the principal group, so the suffix is -ol.
Step 2: Numbering
The ring carbon with -OH is C-1. Numbering towards the neighbouring carbon that has the ethyl group gives that carbon locant 2.
Step 3: Name
The name is 2-ethylcyclopentan-1-ol, usually written 2-ethylcyclopentanol.
Final Answer:
The IUPAC name is 2-ethylcyclopentanol. \[ \boxed{\text{(C) }\text{2-Ethylcyclopentanol}} \]
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