A solution is saturated with SrCO_3 and SrF_2. The [CO_3 ^{2–}] is found to be 1.2 \times 10^{–3}M. The concentration of F ^{–} in the solution would be Given : K_{sp} (SrCO_3) = 7.0 \times 10 ^{–10}, K_{sp} (SrF_2) = 7.9 \times 10^{–10}

Correct Answer is : 3.7 × 10–2 M

WBJEE 2020 Chemistry Solved Paper

Question : 33 of 40

Marks: +1, -0

A solution is saturated with SrCO3 and SrF2. The [CO32–] is found to be 1.2×10–3M.
The concentration of F– in the solution would be
Given : Ksp(SrCO3)=7.0×10–10, Ksp(SrF2)=7.9×10–10

3.7 × 10‌–6 M
3.2 × 10‌–3 M
5.1 × 10‌–7 M
3.7 × 10‌–2 M

Validate

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