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Grade 11Inorganic Chemistry

graphite is a soft solid lubricant extremely difficult to melt .the reason for this anomalous behaviour is that graphite
a)is an allotrophic form of carbon
b)is a non -crystalline substance
c)has carbon atoms arranged in a large plates of rings of strongly bonded carbon atoms with weak interplate bonds
d)has molecule of variabl molecular masses like polymers

Profile image of christopher
8 Years agoGrade 11
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1 Answer

Profile image of Varon
ApprovedApproved Tutor Answer8 Years ago
option c is the correct answer.
graphite is a soft solid lubricant extremely difficult to melt. the reason for this anamolous behaviourbis that graphite has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak van der waals forces.
Thus,these layers can slide over one another.
This gives softness,greasiness and lubricating character to graphite