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21-11-2020
Physics

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Which of the following non-metals is used as a lubricant in powdered form?
a) Sulphur
b) lodine
c) Graphite
d) Silicon

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AwkwardLearner AwkwardLearner

21-11-2020

Answer:

Graphite.

Explanation:

Graphite: "a gray crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors."

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