The common name of propane -1 3-dioic acid is____________________?
Correct answer: C. Malonic acid
- A. Oxalic acid
- B. Succinic acid
- C. Malonic acid
- D. Fumaric acid
Explanation
Propane-1,3-dioic acid has three carbon atoms with carboxyl groups at both ends, HOOC-CH2-COOH, whose common name is malonic acid. Oxalic acid has two carbon atoms, while succinic acid has four. Students may choose succinic acid by confusing the carbon-chain length.
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About Nomenclature, Structure and Preparation
Carboxylic acids are prepared by oxidising primary alcohols or aldehydes, hydrolysing nitriles, esters and amides, and carbonating suitable organometallic compounds. Their structures, IUPAC naming, resonance stabilisation and acidic character explain why carboxylic acids differ from alcohols and phenols, despite all containing oxygen and hydrogen.
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550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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