Question:
The common name of 2-Butanone is
The common name of 2-Butanone is
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Common names of ketones are formed by writing the names of the two alkyl groups attached to the carbonyl carbon followed by the word ``ketone''.
Updated On: Jun 5, 2026
- Acetone
- Butyraldehyde
- Acetic anhydride
- Ethyl Methyl Ketone
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The Correct Option is D
Solution and Explanation
Concept:
2-Butanone is a ketone containing four carbon atoms. Its structural formula is
\[
CH_3COCH_2CH_3
\]
The carbonyl carbon is attached to:
\[
CH_3 \quad (\text{Methyl group})
\]
and
\[
C_2H_5 \quad (\text{Ethyl group})
\]
Therefore its common name is obtained by naming the two alkyl groups attached to the carbonyl carbon followed by the word ketone.
Step 1: Write the structure. \[ CH_3COCH_2CH_3 \]
Step 2: Identify the alkyl groups. Groups attached to \(>C=O\): Methyl group and Ethyl group
Step 3: Write the common name. Ethyl Methyl Ketone Therefore the correct answer is option (D). center minipage0.45
2-Butanone = Ethyl Methyl Ketone minipage center
Step 1: Write the structure. \[ CH_3COCH_2CH_3 \]
Step 2: Identify the alkyl groups. Groups attached to \(>C=O\): Methyl group and Ethyl group
Step 3: Write the common name. Ethyl Methyl Ketone Therefore the correct answer is option (D). center minipage0.45
2-Butanone = Ethyl Methyl Ketone minipage center
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