A) Lowers the density of the \[KCl\] crystal.
B) Raises the density of the \[KCl\] crystal.
C) Does not affect the density of the \[KCl\] crystal
D) Increases the Frenkel defects of the \[KCl\]crystal.
Correct Answer: A
Solution :
[a] One \[C{{a}^{2+}}\] lets two \[{{K}^{\oplus }}\]leave the crystal to maintain the electrical neutrality of the compound. The mass of two \[{{K}^{\oplus }}\] is greater than the mass of \[C{{a}^{2+}}\] Hence, density decreases.
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