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Question
The solubility of CaF2 is 2 × 104. Its solubilily product KSP is      
Options:
A .  2 × 10−4
B .  4 × 10−3
C .  8 × 10−12
D .  3.2 × 10−11
E .  None of the options are correct.
Answer: Option D
:
D
Ksp for CaF2=4s3=4×[2×104]3=3.2×1011

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