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CBSE Class 12-science Answered

In the normal spinel structure, the oxide ions are arranged in CCP pattern. The Zn2+ ions occupy one eighth of the tetrahedral holes and one half of the octahedral voids are occupied by Al3+. Give the formula of the spinel.
Asked by | 29 Jul, 2012, 03:47: PM
answered-by-expert Expert Answer

Since Zn2+ atoms occupy one-eighth of all the tetrahedral voids and the Al3+ atoms occupy half of all the octahedral voids in the oxygen lattice.  Thus the formula becomes "ZnAl2O4"

Answered by | 01 Aug, 2012, 10:17: AM
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