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Chemistry
Which of the following metal sulphide has maximum solubility in water?
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Q. Which of the following metal sulphide has maximum solubility in water?
Equilibrium
A
${CdS}\left( K _{ sp }=36 \times 10^{-30}\right)$
4%
B
${FeS}\left( K _{ sp }=11 \times 10^{-20}\right)$
68%
C
${HgS}\left( K _{ sp }=32 \times 10^{-54}\right)$
25%
D
$ZnS \left( K _{ sp }=11 \times 10^{-22}\right)$
3%
Solution:
The salt with highest $K_{s p}$ is most soluble. Thus; $FeS$ will be most soluble.