MCQ
Which of the following does not give ppt with $CrO _{4}^{-2}$
- ✓$Ca^{2+}$
- B$Sr^{+2}$
- C$Pb^{+2}$
- D$Ba^{+2}$
✓
Answer
Correct option: A.
$Ca^{2+}$
a
The cation $Ca ^{+2},$ which is from $V^{th}$ group, is not able to give ppt with $CrO _{4}^{-2}$ as its has high solubility.
The cation $Ca ^{+2},$ which is from $V^{th}$ group, is not able to give ppt with $CrO _{4}^{-2}$ as its has high solubility.
Order of $Ksp \Rightarrow BaCrO _{4} < SrCrO _{4} < CaCrO _{4}$
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