Which of the following statements is correct?
Biomolecules · Class 12 · JEE Main Previous Year Question
Which of the following statements is correct?
- a
Gluconic acid is a dicarboxylic acid
- b
Gluconic acid can form cyclic (acetal/hemiacetal) structure
- c✓
Gluconic acid is a partial oxidation product of glucose
- d
Gluconic acid is obtained by oxidation of glucose with
Gluconic acid is a partial oxidation product of glucose
Step 1: Understanding Oxidation States — Partial oxidation of the aldehyde group in glucose () yields gluconic acid.
Step 2: Identifying Reagents — This mild oxidation typically uses bromine water. Strong oxidants like would oxidize both the aldehyde and primary alcohol to give saccharic acid.
Step 3: Structural Properties — Gluconic acid is a monocarboxylic acid and does not easily form cyclic hemiacetals because the anomeric carbon is part of the carboxylic acid group. Thus, (c) is the only correct statement.
Key Point: Bromine water is a standard reagent to confirm the presence of an aldehyde group in sugars.
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