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Reducing sugar: Quiz


Question 1: In glucose ________ as starch and starch-derivatives like glucose syrup, maltodextrin and dextrin the macromolecule begins with a reducing sugar, a free aldehyde.
PlasticPolymerPolymer chemistryNylon

Question 2: Even though a ________ cannot be oxidized directly, a keto sugar may be converted to an aldehyde via a series of tautomeric shifts to migrate the carbonyl to the end of the chain.
KetoneCarboxylic acidAlcoholAlkane

Question 3:
When was the Reducing sugar?
11th century
December 2009

Question 4: ________ which contain an aldehyde group are known as aldoses, and those whith a ketone group are known as ketoses.

Question 5: Reducing monosaccharides include glucose, ________, glyceraldehyde and galactose.

Question 6: A reducing sugar is any sugar that, in a solution, has an ________ or a ketone group.

Question 7: Aldohexose (Allose, Altrose, ________, Mannose, Gulose, Idose, Galactose, Talose)

Question 8: More ________ starch contains more reducing sugars.

Question 9: This allows the sugar to act as a reducing agent, for example in the ________ and Benedict's reaction.
Maillard reactionBrowning (chemical process)Rice6-Acetyl-2,3,4,5-tetrahydropyridine

Question 10: However, a non-reducing sugar can be hydrolysed using dilute ________.
Hydrochloric acidEthanolSulfuric acidHydrogen chloride


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