Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CH

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Question: Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CHO?

Options:

Correct Answer: Butanal

Solution:

The compound has a four-carbon chain with an aldehyde functional group, so it is named Butanal.

Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CHO?

Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CHO?

Step 1: Identify the number of carbon atoms in the compound CH3-CH2-CH2-CHO. Count them: there are 4 carbon atoms.
Step 2: Determine the functional group present in the compound. The -CHO group at the end indicates that it is an aldehyde.
Step 3: Name the longest carbon chain. Since there are 4 carbon atoms, the base name is 'butane'.
Step 4: Change the suffix of 'butane' to reflect the aldehyde functional group. The suffix for aldehydes is 'al', so 'butane' becomes 'butanal'.
Step 5: Combine the information to conclude that the correct IUPAC name for CH3-CH2-CH2-CHO is 'Butanal'.

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