Statement-I: Cane sugar is a disaccharide of α-D-glucose and β-D-fructose. Cane sugar is sucrose. The structure of sucrose consists of α-D-glucose and β-D-fructose units joined by an α,β-1 → 2 glycosidic linkage. Statement-I is correct. Statement-II: Milk sugar is a disaccharide of α-D-glucose and β-D-galactose. Milk sugar is lactose. Lactose is composed of β-D-galactose and β-D-glucose, linked by a β - 1⟶4 glycosidic bond. The glucose part in lactose is β-D-glucose, not α-D-glucose. Statement-II is not correct.
