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JEE Main20209 Jan 2020Morning ShiftChemistryIonic EquilibriumActual

The K s p for the following dissociation is 1.6 × 10 - 5 P b C l 2 s ⇌ P b a q 2 + + 2 C l a q - Which of the following choices is correct for a mixture of 300 m L 0.134 M P b N O 3 2 and 100 m L 0.4 M N a C l ?

Options

  1. ANot enough data provided
  2. BQ < K s p
  3. CQ > K s p
  4. DQ = K s p

Correct answer

C. Q > K s p

Step-by-step solution

Q = P b 2 + C l - 2 = 300 &#215; 0.134 400 &#215; 100 &#215; 0.4 400 2 = 3 &#215; 0.134 4 &#215; 0.1 2 = 0.105 &#215; 10 - 2 = 1.005 &#215; 10 - 3 Q &#62; K s p

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