1.

The precipitate of\[Ca{{F}_{2}}\]\[({{K}_{sp}}=1.7\times {{10}^{-10}})\] is obtained when equal volumes of the following are mixed [IIT 1992; UPSEAT 2000]

A. \[{{10}^{-4}}M\,C{{a}^{2+}}+{{10}^{-4}}M\,{{F}^{-}}\]
B. \[{{10}^{-2}}M\,C{{a}^{2+}}+{{10}^{-3}}M\,{{F}^{-}}\]
C. Both
D. None of these
Answer» C. Both


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