Any arsenic present is removed by reacting the mixture with :
Aluminium hydroxide
Aluminium oxide
Ferrix hydroxide
Ferric oxide
Arsenic reacts with ferric hydroxide to form ferric arsenate.
Aluminium oxide reacts with potassium hydroxide to form white salt and water. What is the nature of aluminium oxide?
The salt formed when aluminium oxide reacts with potassium hydroxide is:
Aluminium oxide reacts with hot concentrated solution of sodium hydroxide to form: