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Question
The number of tetrahedral and octahedral voids in hexagonal primitive unit cell are
The number of tetrahedral and octahedral voids in hexagonal primitive unit cell are
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Solution
The correct option is C 12, 6
Effective number of anions 'A' in HCP
=(12 x 1/6) +(2 x 1/2)+(3 x 1) =6
Effective number of octahedral voids = 6 Effective number of tetrahedral voids = 2 x 6 = 12
12, 6
Effective number of anions 'A' in HCP
=(12 x 1/6) +(2 x 1/2)+(3 x 1) =6
Effective number of octahedral voids = 6
Effective number of tetrahedral voids = 2 x 6 = 12
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