Which one of the following statements is not true regarding (+) Lactose?

(+) Lactose, $\displaystyle \mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}$ contains $\displaystyle 8$-OH groups

On hydrolysis (+) Lactose gives equal amount of D(+) glucose and D(+) galactose

(+) Lactose is a $\displaystyle \beta$-glycoside formed by the union of a molecule of D(+) glucose and a molecule of D(+) galactose

(+) Lactose is a reducing sugar and does not exhibit mutarotation