7. Write one example for each of the following:
(a) A non- metal with best conductor of heat and a non –metal with poorest conductor of heat.
(b) A metal with dull lustre and a non-metal with lustre
(c) A metal in liquid state and a non-metal in solid state
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a. Graphite is a non-metal which is a good conductor of heat and electricity.
rest all non-metals are poor conductor of heat and electricity.
b. non-metal with lustre are Iodine, Graphite and Diamond.
c. Mercury is a metal in liquid state, non-metal in solid sate is carbon and sulphur.
Explanation:
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