Solid State Question 5
Question 5 - 01 February - Shift 1
Which of the following represents the lattice structure of $A _{0.95} O$ containing $A^{2+}, A^{3+}$ and $O^{2-}$ ions? $\odot A^{2+}$ $\odot A^{3+}$ $\odot O^{2-}$
A.
B.
C.
(1) B and C only
(2) B only
(3) A and B only
(4) A only
Show Answer
Answer: (4)
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
