Q69 / 200 · NEET 2021 · Chemistry

Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are:

A
$8, 4$
B
$6, 12$
C
$2, 1$
Correct answer
D
$12, 6$

Solution

In HCP Structure,
$Z = 6$

Per sphere, there are two tetrahedral voids and one octahedral voids are present in the close packing structures.
Tetrahedral voids $= 12$
Octahedral voids $= 06$
Hence, the correct answer is (D)

Hence, the correct answer is option: 'D'.

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