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30. 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 allotropic 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 non-metals other than carbon which show allotropy. (f) Name a non-metal which is required for combustion.

30. 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 allotropic 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 non-metals other than carbon which show allotropy.
(f) Name a non-metal which is required for combustion.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
(a) Iodine (b) Bromine (c) Graphite (d) Carbon (e) Sulphur, Phosphorus (f) Oxygen

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