Question

In $NaCl$ structure,

• A. all octahedral and tetrahedral sites are occupied
• B. only octahedral sites are occupied
• C. only tetrahedral sites are occupied
• D. neither octahedral nor tetrahedral sites are occupied

Answer 1

Answer: (B)

only octahedral sites are occupied

Answer 2

Octahedral sites are occupied by $Na^+$ ions in $NaCl$ structure.