What are the expected products of hydrolysis of lactose ?

Answer

Lactose is a diassaharide On hydrolysis it gives two molecules of monosaccharides i.e one moleule of each of `D-(+)` glucose and `D-(+)` - galactose
`underset("Lactose")(C_(12)H_(22)O_(11))+H_(2)Ounderset(orLactase)overset(H_(3)O^(+))rarr underset(Gloucose)overset(C_(6)H_(12)O_(6))(D-(+))+underset("Galactose")overset(C_(6)H_(12)O_(6))(D-(+))` .

Explanation

In alkaline medium sugar undergo rearrangement.