1.

(a) Compare the properties of a typical metal and a non-metal on the basis of the following:(i)Nature of the oxide formed by them.(ii) Conductivity.(b) Name a non-metal which is lustrous and a metal which is liquid at room temperature.

Answer»

Solution : (a) (i) Sodium is a metal, it forms BASIC OXIDE while carbon is a non-metal. It forms ACIDIC oxide.(ii) Copper is a metal. It is a good conductor of HEAT and electricity. Sulphur is a non-metal. Itis a non-conductor of heat and electricity.
(b) Graphite, a form of carbon is a non-metal and is lustrous. Mercury, (HG) a metal is a liquid at room temperature.


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