Practice question

MCQ

Question

What is the IUPAC name of CH₃CH\=CHCOOH?

Options

Choose one · Correct answer highlighted

But-3-enoic acid Butanoic acid Prop-2-enoic acid But-2-enoic acid Correct

Explanation

The compound has a 4-carbon chain with a carboxylic acid group (butanoic acid) and a double bond between C-2 and C-3: but-2-enoic acid.

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