Lactose contains $$\alpha $$-glycosidic linkage between C₁ of galactose and C₄ of glucose

Lactose is a reducing sugar and it gives Fehling’s test

On acid hydrolysis, lactose gives one molecule of D(+)-glucose and one molecule of D(+)-galactose

Lactose (C₁₁H₂₂O₁₁) is a disaccharide and it contains 8 hydroxyl groups

(I)-(B), (II)-(C), (III)-(D), (IV)-(A)

(I)-(B), (II)-(D), (III)-(A), (IV)-(C)

(I)-(C), (II)-(D), (III)-(B), (IV)-(A)

(I)-(D), (II)-(A), (III)-(C), (IV)-(B)

N₂O₃

N₂O₅

N₂O

NO₂

(a) - (IV), (b) - (III), (c) - (II), (d) - (I)

(a) - (III), (b) - (IV), (c) - (I), (d) - (II)

(a) - (III), (b) - (IV), (c) - (II), (d) - (I)

(a) - (IV), (b) - (III), (c) - (I), (d) - (II)