The solubility products of different sparingly soluble salts are : 1. XY = 4 × 10–20 2. X2Y = 3.2 × 10–11 3. XY3 = 2.7 × 10–31 The increasing order of solubility is :

Question

Prashant Kotian · Accepted Answer

Correct answer: A. aq aq XY s X Y s s 2 sp K s s = >> √ sp K √ 20 10 4 10 2 10 M x x 2 2 aq aq 2 X Y s 2X Y s s 3 sp K 4s 1 1 11 3 3 sp 4 K 3.2 10 s = 2 10 M 4 4 x >> x 3 3 aq aq 3 XY s X 3Y s s 4 sp K 27s 1 1 32 4 4 sp 8 K 27 10 s = 10 M 27 27 x >> Thus, increasing order of solubility is 3 2 XY,XY ,X Y

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