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

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

Options:

  1. Propanoic acid
  2. Butanoic acid
  3. Acetic acid
  4. Methanoic acid

Correct Answer: Propanoic acid

Solution: 

The compound CH3-CH2-COOH has three carbon atoms and is a carboxylic acid, thus it is named propanoic acid.

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

Practice Questions

Q1
What is the IUPAC name of CH3-CH2-COOH?
  1. Propanoic acid
  2. Butanoic acid
  3. Acetic acid
  4. Methanoic acid

Questions & Step-by-Step Solutions

What is the IUPAC name of CH3-CH2-COOH?
Correct Answer: Propanoic acid
  • Step 1: Identify the structure of the compound CH3-CH2-COOH. It has three carbon atoms in total.
  • Step 2: Recognize that the -COOH group indicates that this compound is a carboxylic acid.
  • Step 3: Count the number of carbon atoms in the longest chain, which is 3.
  • Step 4: Use the IUPAC naming convention for carboxylic acids, which is to take the name of the longest carbon chain and add 'oic acid' at the end.
  • Step 5: Since there are 3 carbon atoms, the base name is 'propane'. Therefore, the IUPAC name is 'propanoic acid'.
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