Question:
Which of the following is a tricarboxylic acid?
Which of the following is a tricarboxylic acid?
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Citric acid is a well-known tricarboxylic acid and an important intermediate of the Krebs cycle.
Updated On: Feb 18, 2026
- Valeric acid
- Oxalic acid
- Caproic acid
- Citric acid
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The Correct Option is D
Solution and Explanation
Step 1: Recall the definition of tricarboxylic acids.
Tricarboxylic acids are organic acids that contain three \(\mathrm{-COOH}\) (carboxyl) functional groups in their molecular structure.
Step 2: Analyze the given options.
Valeric acid and caproic acid are monocarboxylic acids.
Oxalic acid contains two carboxyl groups and is therefore a dicarboxylic acid.
Citric acid contains three carboxyl groups.
Step 3: Conclusion.
Hence, citric acid is a tricarboxylic acid.
Tricarboxylic acids are organic acids that contain three \(\mathrm{-COOH}\) (carboxyl) functional groups in their molecular structure.
Step 2: Analyze the given options.
Valeric acid and caproic acid are monocarboxylic acids.
Oxalic acid contains two carboxyl groups and is therefore a dicarboxylic acid.
Citric acid contains three carboxyl groups.
Step 3: Conclusion.
Hence, citric acid is a tricarboxylic acid.
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