What is the IUPAC name of CH3CHO?

What is the IUPAC name of CH3CHO?

Correct Answer: ethanal

Step 1: Identify the molecular formula CH3CHO. This shows that the compound contains carbon (C), hydrogen (H), and oxygen (O).
Step 2: Count the number of carbon atoms in the formula. There are 2 carbon atoms.
Step 3: Determine the functional group present. The -CHO group indicates that this is an aldehyde.
Step 4: Use the number of carbon atoms to name the base alkane. With 2 carbon atoms, the base name is 'ethane'.
Step 5: Since the compound is an aldehyde, change the 'e' in 'ethane' to 'al' to form 'ethanal'.
Step 6: Recognize that ethanal is also commonly known as acetaldehyde.

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