At 30∘C, the solubility of Ag2CO3(Ksp)=8×10−12) would be greatest in 1L of :
A
0.05MNa2CO3
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B
0.05MAgNO3
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C
Pure water
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D
0.05MNH3
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Solution
The correct option is D0.05MNH3 CO2−3ofNa2CO3andAg+ofAgNO3 will exert common ion effect on Ag2CO3 and hence decreases the solubility. Whereas NH3 will cause the precipitation of Ag+ ions as [Ag(NH3)2]+ and hence increases the solubility.