1. 2.66 × 10⁻¹² 2. 4.5 × 10⁻¹¹ 3. 5.3 × 10⁻¹² 4. 2.42 × 10⁻⁸

Answer: 3. 5.3 × 10⁻¹² Key idea: Ag₂C₂O₄ ⇌ 2Ag^+ + C₂O₄²⁻ , K_sp=[Ag^+]²[C₂O₄²⁻] . [C₂O₄²⁻]=1/2[Ag^+]=1.1×10⁻⁴ M. K_sp=(2.2×10⁻⁴)²×1.1×10⁻⁴=4.84×10⁻⁸×1.1×10⁻⁴≈5.3×10⁻¹² .

Topic: Solubility product· Equilibrium

Concentration of the Ag^+ ions in a saturated solution of Ag_2C_2O_4 is 2.2 × 10^-4 mol L^-1. Solubility product of Ag_2C_2O_4 is :

1. \(2.66 \times 10^{-12}\)

2. \(4.5 \times 10^{-11}\)

3. \(5.3 \times 10^{-12}\)

4. \(2.42 \times 10^{-8}\)

Doubtly Asked 30 Oct 2026 NEET UG 2017 Practice test neet Save WhatsApp Report

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Answer: 3. \(5.3 \times 10^{-12}\)

Key idea: \(Ag_2C_2O_4 \rightleftharpoons 2Ag^+ + C_2O_4^{2-}\), \(K_{sp}=[Ag^+]^2[C_2O_4^{2-}]\).

\([C_2O_4^{2-}]=\tfrac12[Ag^+]=1.1\times10^{-4}\) M.

\(K_{sp}=(2.2\times10^{-4})^2\times1.1\times10^{-4}=4.84\times10^{-8}\times1.1\times10^{-4}\approx5.3\times10^{-12}\).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Concentration of the Ag^+ ions in a saturated solution of Ag_2C_2O_4 is 2.2 × 10^-4 mol L^-1. Solubility product of Ag_2C_2O_4 is :

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