Spinel is a important class of oxides consisting of two types of metal ions with the oxide ions arranged in CCP pattern. The normal spinel has one-eight of the tetrahedral holes occupied by one type of metal ion and one half of the octahedral hole occupied by another type of metal ion. Such a spinel is formed by Zn^(2+), Al^(3+) and O^(2–), with Zn^(2+) in the tetrahedral holes. Give the formulae of spinel.

Spinel is a important class of oxides consisting of two types of metal

1.	Spinel is a important class of oxides consisting of two types of metal ions with the oxide ions arranged in CCP pattern. The normal spinel has one-eight of the tetrahedral holes occupied by one type of metal ion and one half of the octahedral hole occupied by another type of metal ion. Such a spinel is formed by Zn^(2+), Al^(3+) and O^(2–), with Zn^(2+) in the tetrahedral holes. Give the formulae of spinel.
Answer» ANSWER :`ZnAl_(2)O_(4)`