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General Science Elements Metals - Discussion Page For Q.1489 | General Knowledge Questions and Answers | General Knowledge Free Online-Tests | LucentBlackBoard | LucentBlackBoard.com
Q: Which of the following is used as a lubricant?
A. Graphite B. Silica
C. Iron Oxide D. Diamond

Answer and Explanation

Answer:Graphite

Explanation:
There is no explanation...

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