Which process is used to convert hydrated alumina into anhydrous alumina?

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

Consider two chemical reactions $(A)$ and $(B)$ that take place during metallurgical processes:
$(A)$ $ZnCO_{3(s)} \longrightarrow ZnO_{(s)} + CO_{2(g)}$
$(B)$ $2ZnS_{(s)} + 3O_{2(g)} \longrightarrow 2ZnO_{(s)} + 2SO_{2(g)}$
The correct names for these processes are:

What is produced when zinc blende is roasted in air?

$2CuFeS_2 + O_2 \rightarrow Cu_2S + 2FeS + SO_2$
Which process of metallurgy of copper is represented by the above equation?

Which of the following is an example of the calcination process?