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The number of terrahedral and octahedral...

The number of terrahedral and octahedral holes in a hexagonal primitive unit cell are respectively:

A

8,4

B

6,12

C

2,1

D

12,6

Text Solution

Verified by Experts

The correct Answer is:
D
No. of atoms per unit cell of hexagonal primitive unit cell = 6
No. of tetrahedral holes = `6 xx 2 = 12`
No. of octahedral holes = `6 xx 1= 6`
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