

InterviewSolution
Saved Bookmarks
1. |
A solide `A^(+)B^(-)` has the `B^(-)` ions arranged as below. If the `A^(+)` ions occupy half of the tetrahedral sites in the structure. The formula of solid is `:` A. `AB`B. `AB_(2)`C. `A_(2)B`D. `A_(3)B_(4)` |
Answer» Correct Answer - a In a closed packed structure, the number of tetrahedral voids per atom of the crystal is two. Since half of the tetrahedral voids are occupied by `A^(+)` , the number of `A^(+)` is same as that of `B^(-)` in the crystal . Thus formula is `AB`. |
|