Graphite is soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite
A
has carbon atoms arranged in large planes of rings of strongly bound carbon atoms with weak interplanar bonds
B
is a non-crystalline substance
C
is an allotropic form of carbon
D
has molecules of variable molecular masses like polymers
Text Solution
Verified by Experts
The correct Answer is:
A
Since the layers of C-atoms are held together by weak van der Waals forces of attraction, the layers can slip over one another. Thus graphite is soft and acts as a good lubricating agent.
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