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Solution


Q.

In diamond, each carbon atom is bonded to four other carbon atoms to form:
1 a hexagonal array  
2 a rigid three-dimensional structure  
3 a structure in the shape of a football  
4 a structure of a ring  

Ans.

(2)

In diamond, each carbon atom is bonded to four other carbon atoms tetrahedrally to form a rigid three-dimensional structure. This rigid three-dimensional structure of carbon is responsible for the hardness and rigidity of diamond