Practice question
Question
Which carboxylic acid produces a ketone with eight carbon atoms when its calcium salt is heated?
Explanation
Pentanoic acid (CH₃CH₂CH₂CH₂COOH) forms calcium pentanoate, which decarboxylates to heptan-4-one (CH₃CH₂CH₂COCH₂CH₂CH₃), an eight-carbon ketone.
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