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Which of the following statements is correct ? (1) Gluconic acid is obtained by oxidation of glucose with HNO3 (2) Gluconic acid is a partial oxidation product of glucose (3) Gluconic acid can form cyclic (acetal/hemiacetal) structure (4) Gluconic acid is a dicarboxylic acid

1. (1) and (2)
2. (2)
3. (2) and (3)
4. (1), (2) and (4)

Correct answer: (1), (2) and (4)

Solution

Gluconic acid is indeed formed by the oxidation of glucose, specifically through a partial oxidation process, which makes statements (1) and (2) correct. Additionally, gluconic acid contains two carboxylic acid groups, confirming that it is a dicarboxylic acid, thus validating statement (4) as well.

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