What is meant by 'reducing sugars'?
Solution
Carbohydrates that carry a free (or potentially free) aldehyde/ketone group — a free anomeric –OH — and therefore reduce Fehling's solution (red CuO) and Tollens' reagent (silver mirror) are \textbf{reducing sugars}: glucose, fructose, maltose, lactose.
CBSE Class 12 Board · 2010 · All India · Subjective