Question

In a compound oxide ions are present in CCP. $\frac{1}{6}$ th of the tetrahedral voids are occupied cation A and $\frac{1}{3}$ rd of the octahedral voids are occupied by cation B. What is the formula of the compound and what are the charges on A and B respectively.

• A. $A^{5+}{B}^{+}{O}^{3-},AB{O}_3$
• B. $A^{5+}{B}^{+}{O}^{3-},A_{2}B{O}_3$
• C. $A^{4+}{B}^{2+}{O}^{3-},AB{O}_3$
• D. $A^{6+}{B}^{+}{O}^{3-},A{B}_2{O}_3$

Answer 1

Answer: (A), (C)

$A^{4+}{B}^{2+}{O}^{3-},AB{O}_3$