Which of the following is most soluble in water?
1. MnS (Ksp = 8x10-37)
2. ZnS (Ksp = 7x10-16)
3. Bi2S3 (Ksp = 1x10-70)
4. Ag2S (Ksp = 6x10-51)
For a sparingly soluble salt ApBq, the relationship of its solubility product (Ls) with its solubility (s) is:
1. Ls =sp+q.pp.qq
2. Ls =sp+q.pq.qp
3. Ls =spq.pp.qq
4. Ls = spq.(pq)p+q
Solubility of MX2 type electrolytes is 0.5x10-4 mol/L, then the Ksp of electrolytes is :
1. 5 x 10-12
2. 25 x 10-10
3. 1 x 10-13
4. 5 x 10-13
When HCl gas is passed through a saturated solution of common salt, pure NaCl is precipitated because:
1. the impurities dissolve in HCl
2. HCl is highly soluble in H2O
3. the product of [Na+] and [Cl-] exceeds the solubility product of NaCl
4. the solubility product of NaCl is lowered by the chloride ion from aqueous HCl
The correct representation for the solubility product constant of Ag2CrO4 is:
1. [Ag+]2[]
2. [Ag2+][]
3. [2Ag+][]
4. [2Ag+]2[]