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Diamond is harder than Graphite because of:
tetraherdal structure of diamond
difference in their structures
difference of layers of atoms
difference of cyrstalline structures.
Diamond have a tetrahederal structure. Each carbon atom is covalently bonded to four other carbon atoms. A lot of energy is needed to separate the atoms indiamond. Graphite have a hexagonal layered structure,covalents are stronger in same hexagonal plane but are weaker in between layers.
By: Abhipedia ProfileResourcesReport error
Vishesh kumar
both statements a and d are correct
Yes, they have different crystalline structures i.e. terahedral and hexagonal Therefore both statements a and d are correct
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