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.

Avni said:   1 decade ago
Thank you so much!

Jitendra said:   9 years ago
Why not silicon?

Sakshi said:   8 years ago
Thanks.


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