Give equations for the reduction of

Copper oxide

Give equation for the reduction of

Iron (III) oxide

Give equations for the reduction of

Lead (II) oxide

Give equations for the reduction of

Zinc oxide

On which factors does purification of metals depend?

Name the methods used for purification.

With a labelled diagram explain electro-refining of a particular metal.

The metal other than aluminium, which has a strong affinity for oxygen is

A metallic oxide which cannot be reduced by normal reducing agents.