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Physical Properties of Non-metals

Name-: 1) har...

Question

Name-:
1) hardest metal
2) metal which is poorest conductor of heat and electricity

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Solution

1) The hardest metal on earth is tungsten.
2) Mercury is the metal which is poorest conductor of heat.

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Q. Among metals, the poorest conductor of heat is:

Q. Name the metal which is the poorest conductor of heat.

Q. Which of the following metals is proven to be the poorest conductor of electricity?

Name

(a) a soft metal.

(b) a metal which is brittle.

(c) a non-metal which is lustrous.

(d) a liquid metal.

(e) a metal which is a poor conductor of electricity.

(f) a non-metal which is a good conductor of electricity.

(g) a liquid non-metal.

(h) the hardest naturally occurring substance.

(i) an inert gas.

Q. Question 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 a non-metal other than carbon which shows allotropy.
(f) Name a non-metal which is required for combustion.

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Physical Properties of Non-metals

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