Question

Identify $A$, $B$, $C$ and $D$ in the following flow chart :

	$A$	$B$	$C$	$D$
(a)$\,\,$	Impurity defects$\,\,$	Stoichiometric defects$\,$	Non-stoichiometric defects$\,\,$	Anion excess defects$\,\,$
(b)$\,\,$	Stoichiometric defects$\,\,$	Non-stoichiometric defects$\,\,$	Impurity defects$\,\,$	Metal excess defects$\,\,$
(c)$\,\,$	Non-stoichiometric defects$\,\,$	Stoichiometric defects$\,\,$	Impurity defects$\,\,$	Cation vacancy$\,\,$
(d)$\,\,$	Impurity defects	Stoichiometric defects$\,\,$	Metal excess defects	Non-stoichiometric defects$\,\,$

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (B)

Correct answer is (b) b