Question

(a) Give two methods to prevent the rusting of iron ?

(b) Name the ores of the following metals (i) mercury and (ii) zinc



(c) Explain, with the help of a diagram, how impure copper metal can be refined ? Label the important arrangements in the experimental set up.

Answer 1

a) The two methods to prevent rusting of iron are-- by applying paint and galvanising

Answer 2

a)elctroplating
painting the metal
b)cinnabar 2)sulphide