MHT CET 2022 Chemistry question

Not in JEE Main or NEET syllabus

What is the co-ordination number of hcp crystal lattice?

(A)4
(B)12Correct
(C)6
(D)8

Answer: (B)

Solution

In hexagonal close packing (hcp), each sphere touches 6 spheres in its own layer, 3 in the layer above and 3 in the layer below: . So the coordination number is 12, option

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Question ID VK-093846