Which one of the following statement is not true?

The linkage is between $C - 1$ of Galactose and $C - 4$ of Glucose

Lactose (Milk sugar) $\overset{{H}_{3}{O}^{⊕}}{\to}\beta$-galactose $+ \beta$-glucose

\left({C}_{12}{H}_{22}{O}_{11}\right)$</p><p>it is hydrolysed by dilute acids or by the enzyme lactase, to an equimolecular mixture of$D\left(+\right)-glucose and $D\left(+\right)$-galactose. Lactose is a reducing sugar.