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  4. Which of the following represents the lattice structure of A 0.95 O containing A 2+, A 3+ and O 2- ions?

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Q. Which of the following represents the lattice structure of $A _{0.95} O$ containing $A ^{2+}, A ^{3+}$ and $O ^{2-}$ ions?Chemistry Question Image

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Solution:

Applying electrical neutrality principle in metal defficiency defect. $3 A ^{2+}$ are replaced by $2 A ^{3+}$, thus one vacant site per pair of $A ^{3+}$ is created