Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted  from it by electrolytic reduction.

Write three balanced equations for the purification of bauxite by Hall's process.

Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted  from it by electrolytic reduction.

Name a chemical used for dissolving aluminium oxide. In which  state of division is the chemical used?

Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted  from it by electrolytic reduction.

Write an equation for the reaction which takes place at the anode during the extraction of aluminium by the electrolytic process.

Mention one reason for the use of aluminium in thermite welding.

Write the equation for the reaction in the Habber process that forms ammonia.

36.

State the purpose of liquefying the ammonia produced in the process.

State one reason why  tap water is not used to prepare a solution of silver nitrate in the laboratory.

Write the equation for the preparation of ethylene from ethyl alcohol.

Write the general formula for a saturated hydrocarbon and give one example of saturated hydrocarbon with its structural formula.

Name a compound which will give acetylene gas when treated with water.