What is the name of C3H7COOH?

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

What is the name of C3H7COOH?

Explanation:
The name is determined by the length of the main carbon chain that contains the carboxyl group. Count the carbons starting from the carbon in the COOH group. In C3H7COOH, there are four carbons in total along that chain (the COOH carbon plus three more in the attached alkyl group). Four carbons give the name butanoic acid (systematic; the common name is butyric acid). The other options correspond to shorter or longer chains: ethanoic (2), propanoic (3), pentanoic (5).

The name is determined by the length of the main carbon chain that contains the carboxyl group. Count the carbons starting from the carbon in the COOH group. In C3H7COOH, there are four carbons in total along that chain (the COOH carbon plus three more in the attached alkyl group). Four carbons give the name butanoic acid (systematic; the common name is butyric acid). The other options correspond to shorter or longer chains: ethanoic (2), propanoic (3), pentanoic (5).

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