When $AlCl_3 \cdot 6H_2O$ is strongly heated,then it forms

State the uses of aluminium and copper.

In the following reaction,assign the correct description for the underlined atom in the product of complete hydrolysis at $R.T.$:
$\underline{I}Cl + H_2O \longrightarrow HIO + HCl$

Chemically,borax is:

In the reaction $B_2O_3 + C + Cl_2 \to A + CO$,the $A$ is:

Which of the following is not associated with water molecules?