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JEE Main2005ChemistryIonic EquilibriumActual

The solubility product of a salt having general formula M X₂ , in water is: 4 10⁻¹² . The concentration of M ²⁺ ions in the aqueous solution of the salt is

Options

  1. A2.0 10⁻⁶ M
  2. B1.0 10⁻⁴ M
  3. C1.6 10⁻⁴ M
  4. D4.0 10⁻¹⁰ M

Correct answer

B. 1.0 10⁻⁴ M

Step-by-step solution

~K _ sp =4 ~s ^3, ~S = [3] K _ sp 4 =1 10⁻⁴

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