Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured

Solution

Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
(a)   Name a lustrous non-metal.
(b)   Name a non-metal which exists as a liquid at room temperature.
(c)   The allotrpic form of a non-metal is a good conductor of electricity. Name the allotrope.
(d)  Name a non-metal which is known to form the largest number of compounds.
(e)   Name a non-metal other than carbon which shows allotropy.
(f)   Name a non-metal which is required for combustion.

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