Graphite differs from diamond because graphite is –
(A) Slippery to touch and good conductor of electricity.
(B) Slippery to touch and very good conductor of heat
(C) Greyish black in colour and bad conductor of electricity.
(D) Greyish black in colour and very good conductor of heat.
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Answer:
(A) Slippery to touch and good conductor of electricity.
Explanation:
Graphite differs from diamond because graphite is slippery to touch and good conductor of electricity.
In graphite, free electrons move throughout the entire layers, and hence graphite is a good conductor of electricity.
Whereas in diamond, there are no mobile electrons in the system. Hence, diamond crystal is non conductor of electricity.
Diamond is hard beautiful crystalline substance.
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