General Knowledge - General Science - Discussion

Discussion Forum : General Science - Elements and Metals (Q.No. 15)
15.
Which of the following is used as a lubricant?
Graphite
Silica
Iron Oxide
Diamond
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
63 comments Page 7 of 7.

Subrahmanyam said:   1 decade ago
Because in the graphite the covalent bonds are less tightly bounded so the graphites have smooth surface. So by this reason the graphite are used as lubricants.

Avni said:   1 decade ago
Thank you so much!

Tinni Choudhury said:   1 decade ago
Because graphite has one free electron.


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