A) Octahedral void is formed at the centre of six spheres which lie at the apices of a regular octahedron.
B) There is one octahedral site for each sphere.
C) There are two tetrahedral sites for each sphere.
D) Octahedral voids are formed when the triangular voids in second layer exactly overlap with similar voids in the first layer.
Correct Answer: D
Solution :
Octahedral sites are created by overlapping two equilateral triangles with apices in opposite directions.
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