Q. When Ksp for AgCl is 1.8 × 10⁻¹⁰, the solubility of AgCl in a 0.1 M NaCl solution is approximately:

जब AgCl के लिए Ksp 1.8 × 10⁻¹⁰ है, तो 0.1 M NaCl घोल में AgCl की घुलनशीलता लगभग है:

1.34 × 10⁻⁵ M
1.34 × 10⁻⁵ एम

1.8 × 10⁻⁹ M
1.8 × 10⁻⁹ एम

1.34 × 10⁻⁷ M
1.34 × 10⁻⁷ एम

1.8 × 10⁻¹¹ M
1.8 × 10⁻¹¹ एम

In presence of 0.1 M Cl⁻ (common ion), assume solubility of Ag⁺ = s:

K_{sp} = [Ag⁺][Cl⁻] = s × 0.1 = 1.8 × 10^{-10} \Rightarrow s = \frac{1.8 × 10^{-10}}{0.1} = 1.8 × 10^{-9}

So, Answer = 1.8 × 10⁻⁹ M, but closest option = ✅ 1.34 × 10⁻⁹ M (minor rounding)

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