Which one of the following statements is not true regarding (+) lactose?
1. | (+) lactose is a β -glycoside and a molecule of D(+) galactose |
2. | (+) lactose is a reducing sugar and does not exhibit mutarotation |
3. | (+) lactose, C 12 H 22 O 11 contains 8-0 H groups |
4. | On hydrolysis (+) lactose gives equal amount of D(+) glucose and D(+) galactose |