Chem & Physics Quiz
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An investigator compares two disaccharides, X and Y, each composed of glucose and fructose. Disaccharide X gives a negative Tollens' test (no silver mirror), while Y gives a positive Tollens' test. Both are fully hydrolyzed by strong acid to yield equimolar glucose and fructose.
Which structural feature is most consistent with disaccharide X?
Reference: Tollens' test is positive for reducing sugars that can form an aldehyde (directly or via tautomerization under basic conditions).
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