The solubility products of MA,MB,MC, and MD are `1.8 xx10^(-10), 4 xx10^(-3), 4xx 10^(-8) and 6 xx10^(-5)` respectively. Ifa 0.01 M solution of MX is added dropwise to a mixture containing `A ^(Ө), B ^(Ө), C^(Ө)and D ^(Ө)` ions, then the one to be precipitated first will be

Options

A. MA
B. MB
C. MC
D. MD

Answer

A

Explanation

Since all compounds (MA, MB, MC and MD) are univalent type. All will ve the same formula solubility in `H_(2)O`(i.e., `sqrt(K_(sp))`). Same concentration of common ion `(M^(o+))` is added so solubilities of will be suppressed. Hence the compound with least `K_(sp)` value will be precipitated, i.e., MA `K_(sp) = 1.8 xx 10^(-10)`.