Which one of the following statements is not true regarding `(+) -` Lactose?A. `(+) -` Lactose, `C_(12) H_(22) O_(11)`, contains `8 - OH` groupsB. On hydrolysis, `(+) -` Lactose gives equal amount of `D- (+) -` glucose and `D- (+) -` galactoseC. `(+) -` Lactose is a `beta`-glycoside formed by the union of a molecule of `D - (+) -` glucose and a molecule of `D- (+) -` galactoseD. `(+) -` Lactose is a reducing sugar and does not exhibit mutarotation

Which one of the following statements is not true regarding `(+) -` La

1.	Which one of the following statements is not true regarding `(+) -` Lactose?A. `(+) -` Lactose, `C_(12) H_(22) O_(11)`, contains `8 - OH` groupsB. On hydrolysis, `(+) -` Lactose gives equal amount of `D- (+) -` glucose and `D- (+) -` galactoseC. `(+) -` Lactose is a `beta`-glycoside formed by the union of a molecule of `D - (+) -` glucose and a molecule of `D- (+) -` galactoseD. `(+) -` Lactose is a reducing sugar and does not exhibit mutarotation
Answer» Correct Answer - D `(+)-` Lactose `(C_(12) H_(22) O_(11))` is a reducing sugar, forms an osazone, and exists in alpha and beta forms which undergo mutarotation. In fact all reducing sugars undergo mutarotation. Acidic hydrolysis or treatment with emulsin (which splits `beta`- linkage only) converts `(+)-` lactose into equal amounts of `D-(+)-` gluose and `D-(+)-` glucose.