MEDIUM
11th CBSE
IMPORTANT
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When solid lead iodide is added to water, the equilibrium concentration of I- becomes 2.6×10-3 M. What is Ksp for PbI2 ?

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Important Questions on Ionic Equilibrium in Solution

MEDIUM
11th CBSE
IMPORTANT

The solubility product (Ksp) of the following compounds are given at 25°C

Compound Ksp
AgCl 1.1×10-10
Ag 1.0×10-16
PbCrO4 4.0×10-14
Ag2CO3 8.0×10-12

The most soluble and least soluble compounds are respectively

 

MEDIUM
11th CBSE
IMPORTANT
The Ksp of Ag2CrO4, AgCl, AgBr and Agl are respectively 1.1×10-12 , 1.8×10-10, 5.0×10-13 and 8.3×10-17. Which one of the following salts will precipitate last if AgNO3 solution is added to the solution containing equal moles of NaCl, NaBr, Nal and Na2CrO4?
MEDIUM
11th CBSE
IMPORTANT
At 25°C, the solubility product of Hg2Cl2 in water is 3.2×10-17 mol3 dm-9. What is the solubility of Hg2Cl2 in water at 25°C?
MEDIUM
11th CBSE
IMPORTANT
What is the minimum volume of water required to dissolve 1 g of calcium sulphate at 298 K. Ksp for CaSO4 is 9.0×10-6.
MEDIUM
11th CBSE
IMPORTANT
If the salt M2X, QY2 and PZ3 have the same solubilities, their Ksp values are related as
MEDIUM
11th CBSE
IMPORTANT
H2S gas is passed into one dm3 of a solution containing 0.1 mole of Zn2+ and 0.01 mole of Cu2+ till the sulphide ion concentration reaches 8.1×10-19 moles. Which one of the following statements is true ? (Ksp of ZnS and CuS are 3×10-22 and 8×10-36 respectively)
HARD
11th CBSE
IMPORTANT
Passing H2S gas into a mixture of Mn2+, Ni2+, Cu2+ and Hg2+ ions in an acidified aqueous solution precipitates
MEDIUM
11th CBSE
IMPORTANT
In presence of HCl, H2S results the precipitation of group-2 radicals but not group-4 radicals during qualitative analysis. It is due to