Duration: 9:17

6 views

0

A spinel is an important class of oxides consisting of two types of metal ions with the oxide ions arranged in ccp layers. The normal spinel 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 spinel is formed by \( \mathrm{Mg}^{2+}, \mathrm{Al}^{3+} \) and \( \mathrm{O}^{2-} \). The neutrality of the crystal is being maintained.
The formula of the spinel is:
(a) \( \mathrm{Mg}_{2} \mathrm{AlO}_{4} \)
(b) \( \mathrm{MgAl}_{2} \mathrm{O}_{4} \)
(c) \( \mathrm{Mg}_{3} \mathrm{Al}_{2} \mathrm{O}_{6} \)
(d) none of these
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live