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What is the IUPAC name of CH3CH2CH2OH?

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Question: What is the IUPAC name of CH3CH2CH2OH?

Options:

  1. Propan-1-ol
  2. Butan-1-ol
  3. Pentanol
  4. Butanol

Correct Answer: Butan-1-ol

Solution: 

The compound CH3CH2CH2OH is named butan-1-ol as it has four carbon atoms and the hydroxyl group is on the first carbon.

What is the IUPAC name of CH3CH2CH2OH?

Practice Questions

Q1
What is the IUPAC name of CH3CH2CH2OH?
  1. Propan-1-ol
  2. Butan-1-ol
  3. Pentanol
  4. Butanol

Questions & Step-by-Step Solutions

What is the IUPAC name of CH3CH2CH2OH?
Correct Answer: butan-1-ol
  • Step 1: Identify the longest carbon chain in the compound CH3CH2CH2OH. Count the number of carbon atoms in the chain.
  • Step 2: The longest chain has 4 carbon atoms, so we start with the base name 'butane'.
  • Step 3: Identify the functional group in the compound. The 'OH' group is a hydroxyl group, which indicates that this is an alcohol.
  • Step 4: Since the hydroxyl group is attached to the first carbon in the chain, we add '1-' to the name.
  • Step 5: Combine the base name and the position of the hydroxyl group to get the full IUPAC name: butan-1-ol.
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