Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous be...
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Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite:
(A) is a non-crystalline substance
(B) is an allotropic form of diamond
(C) has molecules of variable molar masses like polymers
(D) has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds
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