Which of the following is the correct IUPAC name for the compound with the struc

Practice Questions

Q1
Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH2-CH2-CHO?
  1. Butanal
  2. Pentanal
  3. Hexanal
  4. Heptanal

Questions & Step-by-Step Solutions

Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH2-CH2-CHO?
  • Step 1: Identify the structure of the compound. The structure is CH3-CH2-CH2-CH2-CHO.
  • Step 2: Count the number of carbon atoms in the longest chain. There are 5 carbon atoms.
  • Step 3: Determine the functional group. The -CHO at the end indicates that this compound is an aldehyde.
  • Step 4: Use the number of carbon atoms to find the base name. The base name for 5 carbon atoms is 'pent'.
  • Step 5: Since it is an aldehyde, add 'al' to the base name. This gives us 'pentanal'.
  • Step 6: Combine the information to conclude that the IUPAC name is Pentanal.
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