In a hexagonal closest packing in two layers one above the other, the coordiantion number of each sphere will be
In a hexagonal closest packing in two layers one above the other, the coordiantion number of each sphere will be
A. 4
B. 6
C. 8
D. 9
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Correct Answer - D
In hcp, for two layers only, C.N. of each sphere will be 9 (6 its own layer and 3 from the second layer).
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