What is the IUPAC name for the compound with the formula C3H7-CO-CH3?

What is the IUPAC name for the compound with the formula C3H7-CO-CH3?

Correct Answer: Butan-2-one

Step 1: Identify the formula C3H7-CO-CH3. This means we have a chain of 3 carbons (C3H7) and a carbonyl group (CO) attached to another carbon (CH3).
Step 2: Count the total number of carbon atoms in the compound. We have 3 from C3H7 and 1 from CH3, making a total of 4 carbon atoms.
Step 3: Determine the type of compound. Since there is a carbonyl group (C=O) in the middle of the carbon chain, this compound is a ketone.
Step 4: Number the carbon atoms in the chain. Start from the end closest to the carbonyl group. The carbonyl group is on the second carbon.
Step 5: Name the compound based on the number of carbon atoms and the position of the carbonyl group. With 4 carbons, the base name is 'butane', and since the carbonyl is on the second carbon, we add '2-one'.
Step 6: Combine the information to get the IUPAC name: Butan-2-one.

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