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What is the IUPAC name of CH3-CH2-CH2-CHO?

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Question: What is the IUPAC name of CH3-CH2-CH2-CHO?

Options:

  1. Butanal
  2. Propionaldehyde
  3. Pentanal
  4. Hexanal

Correct Answer: Butanal

Solution: 

The compound is a four-carbon aldehyde, hence its IUPAC name is Butanal.

What is the IUPAC name of CH3-CH2-CH2-CHO?

Practice Questions

Q1
What is the IUPAC name of CH3-CH2-CH2-CHO?
  1. Butanal
  2. Propionaldehyde
  3. Pentanal
  4. Hexanal

Questions & Step-by-Step Solutions

What is the IUPAC name of CH3-CH2-CH2-CHO?
  • Step 1: Identify the longest carbon chain in the compound. The structure CH3-CH2-CH2-CHO has four carbon atoms in a row.
  • Step 2: Determine the functional group. The -CHO group at the end indicates that this compound is an aldehyde.
  • Step 3: Count the number of carbon atoms in the longest chain. There are four carbon atoms.
  • Step 4: Use the IUPAC naming rules for aldehydes. Aldehydes are named by taking the name of the longest carbon chain and adding 'al' at the end.
  • Step 5: The name for a four-carbon aldehyde is Butanal.
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