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Most Important Selected Qs for JEE AdvancedChemistryIonic Equilibrium

Paragraph: Pb ( IO ₃ )₂ is a sparingly soluble salt ( K _ sp =2.7 10⁻¹³ ) . To 35 ml 0.15 M Pb ( NO ₃ )₂ solution, 15 ml of 0.8 M KIO ₃ solution is added and a precipitate of Pb ( IO ₃ )₂ is formed. Question: What will be the molarity of IO ₃⁻ ions in the solution after completion of the reaction.

Options

  1. A0.152
  2. B0.081
  3. C0.41
  4. D0.03

Correct answer

D. 0.03

Step-by-step solution

[ IO ₃⁻ ]= 1.5 ~m ~mol (15+35) mL =0.03 M

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