Question:
The IUPAC name of ($CH_3-CH_2-CHO$) is:
The IUPAC name of ($CH_3-CH_2-CHO$) is:
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Don't forget to count the carbon atom that is part of the functional group! In $CH_3CH_2CHO$, the $C$ in $CHO$ is the 1st carbon.
Updated On: May 30, 2026
- Propanone
- Propanal
- Propanoic acid
- Ethanol
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
IUPAC nomenclature follows a specific set of rules: identifying the longest carbon chain, the functional group, and the appropriate suffix.
Step 2: Detailed Explanation:
1. Count the Carbons: The chain $CH_3-CH_2-CHO$ has 3 carbon atoms. The prefix for 3 carbons is "prop-". 2. Identify the Bond: It is a saturated chain (single bonds between carbons), so it is "propan-". 3. Identify the Functional Group: The group $-CHO$ is an aldehyde. 4. Determine the Suffix: The IUPAC suffix for aldehydes is "-al".
Step 3: Final Answer:
Combining these, we get Propanal. (Propanone is a ketone, Propanoic acid is a carboxylic acid).
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