Chemistry-
General
Easy
Question
Carbon exist in two allotropic forms (i) crystalline and (ii) Amorphous. These allotropes of carbon having well defined crystal structures are : diamond, graphite and fullerenes. In diamond each carbon is tetrahedrally linked to four neighbouring carbon atoms through four strong bonds. This network extends in three dimension and is very rigid. In graphite each carbon is linked to three other carbon atoms forming hexagonal rings and form sheet like (layered) structure. The various sheets or layers are held together by weak Vander wall force of attraction.
In graphite, electrons are
- localized on every third carbon
- present in antibonding orbitals
- localized on each carbon atom
- spread out between the structure
The correct answer is: spread out between the structure
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