Write one example each of :
(i) a metal having low melting point and a metal having high melting point.
(ii) a metal which is a poor conductor of electricity and a non-metal which is a good conductor of electricity.

Explanation

Gallium (Ga) is a metal with very low melting point (302 K). Diamond (carbon) is a non-metal with very high melting point. (4000 K)
(ii) Metal lead (Pb) is a poor conductor of electricity whereas graphite (carbon) is a good conductor of electricity.