Question

Which of the following structure is not correctly matched?

• A. NaCl type- $Cl^{-}$ions in ccp structure.$Na^{+}$ionsin half octahedral.
• B. ZnS type-$S^{2 -}$ions in ccpstructure.$Zn^{2 +}$ions in alternate tetrahedral
• C. $CaF_{2}$type - $Ca^{2 +}$ions in ccp structure.$F^{-}$ionsin all tetrahedral voides.
• D. Four $Ba^{2 +}$type -$O^{2 -}$ions in ccpstructure. $Na^{+}$ ions in all tetrahedralholes.

Answer 1

Answer: (A)

NaCl type- $Cl^{-}$ions in ccp structure.$Na^{+}$ionsin half octahedral.

Answer 2

In NaCl type, $Cl^{-}$ions form ccp structure while $Na^{+}$ions are present in all octahedral voids.