Bauxite, diaspore and cryolite are the ore of the:A. AluminiumB. ZincC. CopperD. Silver

The correct answer is A. Aluminium.

Bauxite is the primary ore of aluminum. It is a sedimentary rock that contains high concentrations of aluminum hydroxide minerals, along with other impurities such as iron oxide, silica, and titania. Bauxite is the main source of aluminum worldwide.

Diaspore is a mineral and one of the three primary ore minerals of aluminum. It is an aluminum oxide hydroxide, often found in association with bauxite deposits.

Cryolite, although not an ore of aluminum itself, is an important mineral in the production of aluminum. It is a rare mineral that is used as a flux in the electrolytic reduction of alumina to aluminum metal. Cryolite lowers the melting point of alumina, allowing for more efficient aluminum production.

Therefore, the ores of aluminium are bauxite and diaspore, and cryolite is used in the extraction process.