Which fact about glucose cannot be explained by its open chain structure?
AIt gives n-hexane with HI
BIt forms a pentaacetate
CIt forms an oxime
DIt gives no Schiff's test
Answer & Solution
Correct answer: D. It gives no Schiff's test
A free aldehyde should give Schiff's test, so its absence points to the cyclic hemiacetal form.
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