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Physical Properties of Nonmetals

Which non-met...

Question

Which non-metal has very high melting and boiling points?

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Solution

Diamond and Graphite has more melting and boiling points. Because they are the substances with giant covalent structures have very high melting points, because a lot of strong covalent bonds must be broken.

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Graphite is a non-metal and has very low melting and boiling points.

Q. Name : [5 MARKS]
(a) A liquid non-metal.
(b) A metal with dull appearance.
(c) A metal with low melting and boiling points.
(d) A non-metal with very high melting and boiling points.
(e) A metal which can float on water.
(f) A metal which can be cut with a knife.
(g) A metal which is a bad conductor of heat and electricity.
(h) A non-metal which is ductile.
(i) A non-metal used in alloys.
(j) A non-malleable metal.

Q. Metals generally have very high melting and boiling points due to strong ___ bonds.

Which kind of compounds have very high boiling and melting points?

Give exceptions for the following:

solid non metals are hard

Metals have high boiling and melting points

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