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 (D) 12,6

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Question

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
(D) 12,6

Prashant Kotian · Accepted Answer

Correct answer: D. No. of atoms in Hexagonal primitive unit cell = 6 No. of Tetrahedral voids = 2 × No. of atoms per unit cell = 2 × 6 = 12 No. of Octahedral voids = No. of atoms per unit cell = 6

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