The non-metal which conducts electricity,

A non-metal which is good conductor of electricity is

Silver articles become black on prolonged exposure to air. This is due to the formation of

In the blast furnace iron oxide is reduced by

Which metal is used as an electrode in dry cell?

Food cans are coated with tin and not with zinc because

Which of the following methods is suitable for preventing an iron frying pan from rusting?

The substance added to lower the fusion temperature from 2050^oC to 950^oC is

Which is used in machine parts due to its high tensile strength?

The metal which does not react with dilute H₂SO₄