1.

List the reactions of glucosewhichcannotbe explained by theopen chain structure .

Answer»

SOLUTION :Reaction of glucose whichcannotbe explainedby the openchain strctureare given as under .
(i) Despite havingan aldehdic group , glucosedoes not give2,4-DNPH testand Schiff.s test. Also it DOESNOT form sodium hydrogensulphuphitecompound.
(ii)Pentaacetate of glucosedoes notreact with hydroxyl showingthe absenceof ALDEHYDICGROUP .
(iii) Glucoseexists in two forms , `alpha`-from and `beta` - form


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