What is the IUPAC name for the compound with the formula CH3-CO-CH2-CH3?

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Question: What is the IUPAC name for the compound with the formula CH3-CO-CH2-CH3?

Options:

Correct Answer: Butan-2-one

Solution:

The compound is a ketone with 4 carbons, and the carbonyl group is on the second carbon, making it Butan-2-one.

What is the IUPAC name for the compound with the formula CH3-CO-CH2-CH3?

What is the IUPAC name for the compound with the formula CH3-CO-CH2-CH3?

Step 1: Identify the structure of the compound CH3-CO-CH2-CH3. It has a carbon chain with 4 carbon atoms.
Step 2: Recognize that the 'CO' part indicates a carbonyl group (C=O), which is characteristic of ketones.
Step 3: Determine the position of the carbonyl group. In this case, it is on the second carbon of the chain.
Step 4: Count the total number of carbon atoms in the longest chain, which is 4. This gives the base name 'butane'.
Step 5: Since the carbonyl group is on the second carbon, we add '2' to the name, resulting in 'butan-2'.
Step 6: Add 'one' to indicate that it is a ketone, leading to the final name 'butan-2-one'.

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