The process of converting hydrated alumina into anhydrous alumina is known as .......

In the isolation of metals,the calcination process usually results in:

Select the correct statement:

Roasting involves

In order to bring initial chemical change in the ore,the process of heating of ore below its melting point is known as

In metallurgy,select the correct option using $T$ (True) or $F$ (False) for the statements given regarding calcination:
$(1)$ It is used to remove moisture.
$(2)$ It is used to decompose carbonates.
$(3)$ It is used to remove volatile impurities.