InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
A spinal is an important class of oxides consisting of two types of metal ions with oxides ions arranged in CCP layer. The normal spinal has one-eighth of the tetrahedral holes occupied by one type of metal ion and one-half of the octahedral holes occupied by another type of metal ion. such a spinal is formed by `Zn^(2+), Al^(3+) and O^(2-)` in the tetrahedral holes. if formula of the compound is `Zn_(x)Al_(y) O_(z)`, then find the value of `(x + y + z)` ? The type of packing generated by type (I) is:A. hexagonal close packingB. squre close packingC. cubic close packingD. body centered packing |
|
Answer» Correct Answer - `7 = (1 + 2 + 4)` `O_(4) Zn_((1)/(8) xx 8) Al_((1)/(2) xx 4)` So, formula is `ZnAl_(2)O_(4)` |
|