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JEE Main202524 Jan 2025Morning ShiftChemistryIonic EquilibriumActual

K _ sp for Cr ( OH )₃ is 1.6 10⁻³⁰ . What is the molar solubility of this salt in water?

Options

  1. A1.8 10⁻³⁰ 27
  2. B[5] 1.8 10⁻³⁰
  3. C[4] 1.6 10⁻³⁰ 27
  4. D[2] 1.6 10⁻³⁰

Correct answer

C. [4] 1.6 10⁻³⁰ 27

Step-by-step solution

aligned & Cr ( OH )₃ s Cr ³⁺ ( aq )+ 3 ~s 3 OH ⁻( aq ) & K _ sp = s (3 ~s )^3 & 1.6 10⁻³⁰=27 ~s ^4 & [4] 1.6 10⁻³⁰ 27 = s aligned

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