NH4CN is a salt of weak acid and weak base.
In which of the following vents will AgBr have the highestubility
(a) 10-3 M NaBr (b) M NH4OH 10-3(c) Pure water (d) 10-3 M HBr
AgBr are not disved in NaBr and HBr due to common ioneffect. And pure water is a neutral vent. They do not haveions.
ubility is directly proportional to the Ksp .
ubility of AgCl will be minimum in
(a) 0.001M AgNO3 (b) Pure water(c) 0.01M CaCl2 (d) 0.01M NaCl
0.01 M CaCl2 gives maximum Cl - ions to keep Ksp ofAgCl constant, decrease in [Ag+ ] will be maximum.
The ionic product of water at 25oC is 10-14. The ionic productat 90oC will be
(a) 1×10-20 (b) 1×10-12(c) 1×10-14 (d) 1×10-16
When increasing the temperature the value of ionicproduct also increases.
