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MHT CET Chemistry Ionic Equilibrium 2026 MHT CET 2026 (17 April Shift 2)

MHT CET Chemistry Question (2026) — Solution

Question

Which of the following is correct relationship between solubility and solubility product for silver oxalate ?

Options

  1. A. S = [3] K_ sp 4
  2. B. S = [3] 4 K_ sp
  3. C. S = [3] K_ sp 4
  4. D. S = [4] K_ sp 27

Answer

C. S = [3] K_ sp 4

Step-by-step solution

The chemical formula of silver oxalate is Ag_2C_2O_4. The dissociation reaction is: Ag_2C_2O_4(s) 2Ag^+(aq) + C_2O_4^ 2- (aq) Let the solubility of silver oxalate be S. Then, [Ag^+] = 2S and [C_2O_4^ 2- ] = S. The solubility product K_ sp is given by: K_ sp = [Ag^+]^2 [C_2O_4^ 2- ] Substituting the concentrations: K_ sp = (2S)^2 (S) = 4S^3 S^3 = K_ sp 4 S = [3] K_ sp 4 Answer: S = [3] K_ sp 4

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