# Allotropes of carbon: There are three forms of carbon. i.e., diamond, graphite and fullerene which exxist in crystalline form. Graphite and diamond oc

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Allotropes of carbon: There are three forms of carbon. i.e., diamond, graphite and fullerene which exxist in crystalline form. Graphite and diamond occur in nature. The structure of diamond is tetrahedral with sp^(3) hybridisation and diamond exist in 3-D netowrk solid. in graphite, carbon is sp^(2) hybridised. each carbon linked to other carbon linked to other carbon atom forms hexagonal ring. it has a layered structure. diamond and graphite are purest form of carbon. Fullerene constitute a new family of carbon allotropes.
Consisting of large spheroidal molecule of compound with general formula C_(2n). common fullerene C_(6),C_(70), contain 5 and 6 membered rings.
Q. Which of the following statement is incorrect for graphite?
A. Its density is lower than that of diamond
B. It has a layered structrue and the bonding
C. its layers are very tightly packed, almost without any space between them
D. it cleaves easily between the layers which accounts for the remarkable softness of the crystals

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