Equilibrium Question 214

Question: If the concentration of lead iodide in its saturated solution at 25oC be 2×10−3 moles per litre, then its solubility product is [CPMT 1984]

Options:

A) 4×10−6

B) 8×10−12

C) 6×10−9

D) 32×10−9

Show Answer

Answer:

Correct Answer: D

Solution:

PbI2Ksp, ⇌ Pb++S,+2I−2S,,

Ksp=4S3=4×[2×10−3]3

=32×10−9 .

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