Ionic Equilibrium Part 2

Section: Chemistry

Question : 3 of 34

Marks: +1, -0

Consider two Group IV metal ions X2+ and Y2+.
A solution containing 0.01MX2+ and 0.01MY2+ is saturated with H2S. The pH at which the metal sulphide YS will form as a precipitate is ____ . (Nearest integer)
(Given: Ksp(XS)=1×10−22 at 25∘C,Ksp(YS)=4×10−16 at 25∘C,[H2S]=0.1M in solution Ka1×Ka2(H2S)=1.0×10−21,log‌2=0.30,log‌3=0.48,log‌5=0.70)

[24 jan 2026 Shift 1]

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