What is the IUPAC name for the compound C2H5-CO-CH3?
Practice Questions
1 question
Q1
What is the IUPAC name for the compound C2H5-CO-CH3?
2-Pentanone
3-Pentanone
Butan-2-one
Butan-3-one
The compound is a ketone with four carbons, and the carbonyl group is on the second carbon, hence Butan-2-one.
Questions & Step-by-step Solutions
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Q
Q: What is the IUPAC name for the compound C2H5-CO-CH3?
Solution: The compound is a ketone with four carbons, and the carbonyl group is on the second carbon, hence Butan-2-one.
Steps: 6
Step 1: Identify the molecular formula of the compound, which is C2H5-CO-CH3.
Step 2: Break down the structure: C2H5 is an ethyl group, CO is a carbonyl group (C=O), and CH3 is a methyl group.
Step 3: Count the total number of carbon atoms in the compound: 2 (from C2H5) + 1 (from CO) + 1 (from CH3) = 4 carbon atoms.
Step 4: Determine the type of compound: Since there is a carbonyl group (C=O) between two carbon chains, this compound is a ketone.
Step 5: Number the carbon atoms starting from the end closest to the carbonyl group: The carbonyl group is on the second carbon.
Step 6: Name the compound based on the number of carbon atoms and the position of the carbonyl group: With 4 carbons, it is called butan, and since the carbonyl is on the second carbon, it is butan-2-one.
