Question

Column I		Column II
A	$L{i}_{3}N{a}_3{\left(Al{F}_6\right)}_2$	p	$108x^5$
B	Zirconium phosphate	q	$2916x^8$
C	Bismuth (III) sulphide	r	$27x^4$
D	Aluminium hydroxide	s	$4x^3$
E	Calcium fluoride	v	$6912x^7$

• A. A - (q), B - (t), C - (p), D - (r), E - (s)
• B. A - (t), B - (s), C - (q), D - (p), E - (s)
• C. A - (p), B - (q), C - (r), D - (s) , E - (s)
• D. A - (r), B - (p), C - (s), D - (t) , E - (s)

Answer 1

Answer: (A)

$L{i}_{3}N{a}_3{\left(Al{F}_6\right)}_2\rightleftharpoons {\underset{3x}{3Li}}^{\oplus }+{\underset{3x}{3Na}}^{\oplus }+\underset{3x}{2{\left(Al{F}_6\right)}^{-3}}$
$(a\to q)$
$K_{sp}=3^3{3}^3{2}^2{x}^8=2916x^8$
$(b\to t)Z{r}_3{\left(P{O}_4\right)}_4\rightleftharpoons \underset{3x}{3Z{r}^{+4}}+\underset{4x}{4P{O}_4^{3-}}$
$3x4x$
$K_{sp}=3^3{4}^4{x}^7=6912x^7$
$(c\to p)B{i}_2{S}_3\rightleftharpoons {\underset{2x}{2Bi}}^{3+}+\underset{3x}{3S^{2-}}$
$K_{sp}=2^2{3}^3{x}^5=108x^5$
$A{l}^5(OH{)}_3\rightleftharpoons \underset{x}{A{l}^{3+}}+\underset{3x}{3\stackrel{\ominus }{O}H}$
$(d\to r)x$
$K_{sp}=1^1{3}^3{x}^4=27x^4$
$(e\to s)Ca{F}_2\rightleftharpoons \underset{x}{C{a}^{3+}}+\underset{3x}{2F^{-}}$
$K_{sp}=1^2{2}^3{x}^3=4x^3$