Which of the following metal sulphides has maximum solubility in water

H g S K_{s p} = 10^{- 54}

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C d S K_{s p} = 10^{- 30}

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F e S K_{s p} = 10^{- 20}

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Z n S K_{s p} = 10^{- 22}

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Solution

The correct option is C $F e S K_{s p} = 10^{- 20}$
Compound with higher solubility constant will be more soluble. Among given compounds $F e S (K_{s p} = 10^{- 20})$ has the highest solubility constant. So its solubility will be maximum.

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Similar questions

Q. Which metal sulphide has maximum solubility in water?

Q. The solubility product of

C u S, {A g}_{2} S

and

H g S

are

10^{- 37}, 10^{- 44}

and

10^{- 54}

respectively. The solubility of these sulphides will be in the order:

A solution which has $10^{- 3}$ M each of $M n^{2 +}, F e^{2 +}, Z n^{2 +}$ and $H g^{2 +}$ is treated with $10^{- 16}$ M sulphide ion. If $K_{s p}$ of $M n S$ , $F e S$ , $Z n S$ and $H g S$ are $10^{- 15}$ , $10^{- 23}$ , $10^{- 20}$ and $10^{- 54}$ respectively, which one will precipitate first?

Q. Which of the following sulphides has the maximum solubility product ?

K_{s p}

C u S, {A g}_{2} S, H g S

are

10^{- 31}, 10^{- 44}, 10^{- 54}

respectively. Select the correct order for their solubility in water:

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Which of the following metal sulphides has maximum solubility in water

The correct option is C FeSKsp=10−20Compound with higher solubility constant will be more soluble. Among given compounds FeS(Ksp=10−20) has the highest solubility constant. So its solubility will be maximum.

The correct option is C $F e S K_{s p} = 10^{- 20}$
Compound with higher solubility constant will be more soluble. Among given compounds $F e S (K_{s p} = 10^{- 20})$ has the highest solubility constant. So its solubility will be maximum.