Biomolecules Part 1

Assertion is true but Reason is false. Sucrose is formed by linkage of ${\mathrm{C}}_1$ of α - D glucose and ${\mathrm{C}}_2$ of $\mathrm{\beta }-\mathrm{D}$ fructose. The glycosidic bond in sucrose is formed between reducing ends of both glucose and fructose.
Sucrose is a disaccharide and a non-reducing sugar as it contains no free —CHO group (Anomeric carbon of both monosaccharides are involved in formation of glycosidic bond). The structure is as follows