Nonmetals are usually poor conductors of heat and electricity. They are nonlustrous, non-sonorous, non-malleable and are coloured.
(a) Name a lustrous non-metal.
Ans. Iodine
(b) Name a non-metal which exists as a liquid at room temperature.
Ans. Bromine
(c) The allotropic form of a non-metal is a good conductor of electricity. Name the
allotrope.
Ans. Graphite
(d) Name a non-metal which is known to form the largest number of compounds.
Ans. Carbon
(e) Name a non-metal other than carbon which shows allotropy.
Ans. Sulphur, phosphorus
(f) Name a non-metal which is required for combustion.
Ans. Oxygen
