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What is the IUPAC name for the compound with the formula C3H6O?

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Question: What is the IUPAC name for the compound with the formula C3H6O?

Options:

  1. Propanal
  2. Propan-2-one
  3. Cyclopropanol
  4. Propene

Correct Answer: Propan-2-one

Solution: 

The compound C3H6O is propan-2-one, which is a ketone with the carbonyl group on the second carbon.

What is the IUPAC name for the compound with the formula C3H6O?

Practice Questions

Q1
What is the IUPAC name for the compound with the formula C3H6O?
  1. Propanal
  2. Propan-2-one
  3. Cyclopropanol
  4. Propene

Questions & Step-by-Step Solutions

What is the IUPAC name for the compound with the formula C3H6O?
Correct Answer: propan-2-one
  • Step 1: Identify the molecular formula C3H6O. This means the compound has 3 carbon atoms, 6 hydrogen atoms, and 1 oxygen atom.
  • Step 2: Determine the functional group. The presence of the oxygen atom suggests it could be an alcohol, ether, aldehyde, or ketone.
  • Step 3: Since the formula has a carbonyl group (C=O) and there are no terminal hydrogens, it indicates that the compound is a ketone.
  • Step 4: Count the carbon atoms in the longest chain. There are 3 carbon atoms, so the base name is 'propane'.
  • Step 5: Identify the position of the carbonyl group. In this case, the carbonyl group is on the second carbon, so we use 'propan-2-one' as the name.
  • Step 6: Combine the information to conclude that the IUPAC name for C3H6O is propan-2-one.
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