The incorrect statement regarding the given structure is
Biomolecules · Class 12 · JEE Main Previous Year Question
The incorrect statement regarding the given structure is
- a✓
Can be oxidized to a dicarboxylic acid with water
- b
despite the presence of does not give Schiff's test
- c
has 4-asymmetric carbon atom
- d
will coexist in equilibrium with 2 other cyclic structure
Can be oxidized to a dicarboxylic acid with water
Step 1: Cyclic Structure of Glucose — The provided structure shows glucose in its cyclic hemiacetal form, which coexists in equilibrium with two other cyclic forms ( and ).
Step 2: Chemical Reactivity — Despite being mostly cyclic, it still reacts after internal opening (e.g., with or ), though it doesn't give test.
Step 3: Oxidation Error — Bromine water is a mild oxidant and only oxidizes the group (at C1) to a carboxylic acid, not the terminal (at C6).
Key Point: Dicarboxylic acid (saccharic acid) requires a strong oxidant like concentrated .
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