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 3 of 7.

Sujay said:   9 years ago
Thanks for describing this.

Jitendra said:   9 years ago
Why not silicon?

Aerostar alok said:   9 years ago
Graphite is an allotrope of carbon but only 3 electrons satisfied. Their layers are slippery in nature. Due to this they are used as lubricating.

Vishal said:   9 years ago
In the Graphite covalent bond are loosely bounded and it is formed in a stack like structures due to this it has slippery surface i.e., it is used as lubricants.

Leki wangmo said:   9 years ago
Lubricant is like an oil or grease which is used to lessen the friction.

Thank you all for clearing my doubt.

Rammy said:   9 years ago
Lubricants are also used to do intercourse, it reduce the friction. And graphite have weak van der wall forces due to which it reduce the friction and it also has some brightness.

Biswas mihir kumar said:   9 years ago
Lubricant is a substance, in order to diminish friction.

Example : Oil or Grease.

Anu said:   10 years ago
Graphite is a lubricant.

Sunny yadav said:   10 years ago
Graphite is used as lubricants this is most important in nowadays life.

Yenna Rao said:   10 years ago
We can use many such things as lubricants. Why only silica gel?


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