What is the IUPAC name for the compound with the formula C4H9-CHO?

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Question: What is the IUPAC name for the compound with the formula C4H9-CHO?

Options:

Correct Answer: Butanal

Solution:

The compound has four carbons and an aldehyde functional group, making it Butanal.

What is the IUPAC name for the compound with the formula C4H9-CHO?

What is the IUPAC name for the compound with the formula C4H9-CHO?

Step 1: Identify the number of carbon atoms in the compound. The formula C4H9-CHO indicates there are 4 carbon atoms.
Step 2: Recognize that the '-CHO' part of the formula indicates the presence of an aldehyde functional group.
Step 3: Determine the longest carbon chain that includes the aldehyde group. In this case, the longest chain has 4 carbon atoms.
Step 4: Name the longest carbon chain. A 4-carbon chain is called 'butane'.
Step 5: Since the compound has an aldehyde group, change the 'e' in 'butane' to 'al' to indicate it is an aldehyde. This gives us 'butanal'.
Step 6: Conclude that the IUPAC name for the compound C4H9-CHO is 'Butanal'.

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