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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: Which is a limiting reagent of the reaction that takes place in the solution?

Options

  1. APb ( IO ₃ )₂
  2. BPb ( NO ₃ )₂
  3. CKIO ₃
  4. DBoth B and C

Correct answer

B. Pb ( NO ₃ )₂

Step-by-step solution

aligned & 1 ~mol of Pb ( NO ₃ ) reacts with 2 ~mol of KIO ₃ & 5.25 ~m ~mol of Pb ( NO ₃ )₂ reacts =2 5.25 & =10.5 ~m ~mol & ~m ~mol of KIO ₃ left =12-10.5 & =1.5 & Hence Pb ( NO ₃ )₂ is the limiting reagent aligned

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