Which of the following is the correct IUPAC name for C3H7-COOH?

Which of the following is the correct IUPAC name for C3H7-COOH?

Step 1: Identify the molecular formula C3H7-COOH. This indicates that the compound has a carboxylic acid group (-COOH).
Step 2: Count the number of carbon atoms in the longest chain. The 'C3H7' part indicates there are 3 carbon atoms in the chain.
Step 3: Recognize that the presence of the carboxylic acid group means the compound is an acid.
Step 4: Determine the name based on the number of carbon atoms. With 3 carbon atoms, the base name is 'Propane'.
Step 5: Since it is a carboxylic acid, change 'Propane' to 'Propanoic acid'.
Step 6: Conclude that the correct IUPAC name for C3H7-COOH is 'Propanoic acid'.

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