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What are reducing and non-reducing sugar...

What are reducing and non-reducing sugars ? What is the structural feature characterising reducing sugars ? What is an invert sugar ?

Text Solution

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The main structural feature of reducing sugars is the presence of an aldehyde group `(-CO)` such as in glucose, mannose, galactose , etc. . Or the `alpha` -ketol grouping `(-CO-CH_2OH)` as present in fructose.
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Mention the structural feature characterising reducing sugar.

A non-reducing sugar is

Knowledge Check

  • non-reducing sugars have

    A
    free -CHO group and bound -CO group
    B
    free -CO group and bound -CHO group
    C
    Both -CO and -CHO free groups
    D
    neither free -CO nor free -CHO group
  • Reducing sugar is

    A
    Glycogen
    B
    Sucrose
    C
    Lactose
    D
    All of the above
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