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Are reducing sugars different from non r...

Are reducing sugars different from non reducing sugars? If answer is yes give reason.

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1. Yes. Reducing sugars have a free aldehyde or ketone group. They reduce cupric ions of Benedicts or Fehling's soluiton to form cuprous ions. Eg: Glucose.
2. Non Reducing sugar do not have a free aldehyde or ketone group. They do not respond to Benedicts / Fehling's solution. Eg: Sucrose.
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