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(a) What is graphite ? Of what substance is graphite made ?(c) Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity ?(d) State any two uses of graphite. |
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Answer» (a) Graphite is a greyish-black opaque substance. It is made up of carbon. (c) Due to the presence of free electrons in a graphite crystal, it conducts electricity however; a diamond crystal does not have free electrons so it does not conduct electricity. (d) (i) Used as a lubricant (ii) Used for making pencil leads. |
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