(i) Glycosidic linkage: The two monosaccharides units are joined together through an oxide linkage formed by loss of a molecule of H2O.
(ii) Invert sugar: Hydrolysis of sucrose brings about a change in a sign of rotation from dextro (+) to laevo (-) and the product is known as invert sugar.
(iii) Carbohydrates that yield two to ten monosaccharides units, on hydrolysis are called Polysaccharides.
Examples are starch, cellulose, glycogen etc.
