Q.
Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite :
1171
187
AIEEEAIEEE 2003The p-Block Elements
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Solution:
C-atoms form covalently bonded plates (layers). Layers are bonded weakly together, that's why one layer can slide over other cause lubricacy. Cannot be melted easily as large number of atoms being bonded strongly in the laver form big entity