A) glucose + fructose
B) glucoe + glucose
C) glucose + fructose + galactose
D) glucose + galactose
Correct Answer: D
Solution :
Lactose or milk sugar is reducing sugar formed through \[\text{ }\!\!\beta\!\!\text{ ,}\,\text{1}\,\to \,\,4\] condensation between galactose and glucose. Maltose or malt sugar is also reducing sugar having glycosidic bond of \[\alpha \text{,}\,\text{1}\,\to \,\,4\] between two molecules of glucose. Sucrose is non-reducing commercial sugar formed of glucose and fructose. Raffinose is a trisaccharide, made of glucose, fructose and galactose residue.
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