Metallurgy is the process of extraction of ……………from the ores.

The alloy of copper and tin is ……………

The metals which are available in native form are ………………

The elements or compounds of the metals which occur in nature in the earth's crust are called ……………

The minerals from which the metals are extracted without economical loss are called …………

The ore of aluminium is ……………

Arranging metals in the decreasing order of their reactivity is called ………....

Ores of many metals are ………….

The ore of calcium metal among the following ………….

The fusible product formed when the impurity present in ore react with flux is called …………