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

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

Options:

  1. Ethyl alcohol
  2. Propionaldehyde
  3. Acetaldehyde
  4. Butyraldehyde

Correct Answer: Acetaldehyde

Solution:

The IUPAC name for CH3-CH2-CHO is acetaldehyde.

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

Practice Questions

Q1
What is the IUPAC name for CH3-CH2-CHO?
  1. Ethyl alcohol
  2. Propionaldehyde
  3. Acetaldehyde
  4. Butyraldehyde

Questions & Step-by-Step Solutions

What is the IUPAC name for CH3-CH2-CHO?
  • Step 1: Identify the structure of the molecule CH3-CH2-CHO. It has a chain of carbon atoms with a functional group at the end.
  • Step 2: Count the number of carbon atoms in the longest chain. There are 2 carbon atoms (CH3 and CH2).
  • Step 3: Recognize that the functional group 'CHO' is an aldehyde, which is characterized by the presence of a carbonyl group (C=O) at the end of the carbon chain.
  • Step 4: The name of the aldehyde with 2 carbon atoms is 'acetaldehyde'.
  • Step 5: Combine the information to conclude that the IUPAC name for CH3-CH2-CHO is acetaldehyde.
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