Selective precipitation of ions in a mixture in the form of salts can be adding common ions gradually. Let us condsider selective precipitation of `CI^(-)` and `CrO_(4)^(2-)`ions in the form of AgCl and `Ag_(2)Cro_(4)` form a mixture having having 0.01M `CI^(-)` and 0.01M `CrO_(4)^(2-)`. For this, salt having `Ag^(+)` [like `AgNO_(3)(s)`] is added gradually. Given : `K_(sp) [AgCI]=10^(-10)` and `K_(sp)[Ag_(2)CrO_(4)]=4xx10^(-14)]` The percentage of one ion precipitated when another ion starts precipitation is : (Given: `(1)/(sqrt2)=0.7`)A. `98.7%`B. `99.7%`C. `97.3%`D. `92.7%`

Selective precipitation of ions in a mixture in the form of salts can

1.	Selective precipitation of ions in a mixture in the form of salts can be adding common ions gradually. Let us condsider selective precipitation of `CI^(-)` and `CrO_(4)^(2-)`ions in the form of AgCl and `Ag_(2)Cro_(4)` form a mixture having having 0.01M `CI^(-)` and 0.01M `CrO_(4)^(2-)`. For this, salt having `Ag^(+)` [like `AgNO_(3)(s)`] is added gradually. Given : `K_(sp) [AgCI]=10^(-10)` and `K_(sp)[Ag_(2)CrO_(4)]=4xx10^(-14)]` The percentage of one ion precipitated when another ion starts precipitation is : (Given: `(1)/(sqrt2)=0.7`)A. `98.7%`B. `99.7%`C. `97.3%`D. `92.7%`
Answer» Correct Answer - b

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