What is the IUPAC name for this compound?

Question

Quizplus · Accepted Answer

The compound shown is a two-carbon aldehyde with a methyl group, so the correct IUPAC name is ethanal. Choice A (methyl aldehyde), C (1-ethanone), and E (methanal) are incorrect because they do not accurately describe the compound's structure or naming conventions for aldehydes and ketones. Choice B (1-ethanaldehyde) is also incorrect because the "aldehyde" suffix is redundant - "-al" is already used to denote aldehydes in their naming conventions.

What Is the IUPAC Name for This Compound