Question

Fig. (i) and (ii) represent structure of voids.

Which of the following option is correct?

• A. Tetrahedral and octahedral void respectively
• B. Octahedral and tetrahedral void respectively
• C. Both are octahedral voids
• D. Both are tetrahedral voids

Answer 1

Answer: (B)

Octahedral voids are surrounded by six spheres. Tetrahedral void is formed when the centres of four spheres are joined.