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NEET 2021

Exam: NEET
Year: 2021
Subject: Chemistry
Chapter: Solid State

NEET 2021 · Chemistry · Solid State

Right option for the number of tetrahedral and octahedral voids in...

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

Options

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

Correct answer

D. $12, 6$

Step-by-step 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)

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