JEE Main 2025 Jan 28 Shift 2, Chemistry Q5: Types Concentration And Solubility of Solutions

JEE Main2025Jan 28, Shift 2Chemistry

Arrange the following in increasing order of solubility product :

$C a (O H)_{2}$ , $A g B r$ , $P b S$ , $H g S$

Solution

Comparing the standard $K_{s p}$ values:

$H g S \approx 4 \times 1 0^{- 53}$

$P b S \approx 8 \times 1 0^{- 28}$

$A g B r \approx 5 \times 1 0^{- 13}$

$C a (O H)_{2} \approx 5.5 \times 1 0^{- 6}$

Arranging these from smallest to largest gives $H g S < P b S < A g B r < C a (O H)_{2}$ .

Concept behind this question

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