All are dicarboxylic acids except
Correct answer: A. Oxalic acid
- A. Oxalic acid
- B. Picric acid
- C. Malonic acid
- D. Tartaric acid
Explanation
Option A is correct because oxalic acid (C2H2O4) is indeed a dicarboxylic acid. It is a simple organic compound that contains two carboxylic acid functional groups (-COOH), which are responsible for its acidic properties.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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