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Consider the cell Ag|AgBr((s)), Br^(-)||...

Consider the cell `Ag|AgBr_((s)), Br^(-)||AgCl_((s)), Cl^(-)|Ag` at `25^(@)C`. The solubility product and `AgCl` and `AgBr` are `1 xx 10^(-10)` and `5 xx 10^(-13)` respectively. For what ratio of the concentrations of `Br^(-)` and `Cl^(-)` ions would the `e.m.f.` of the cell be zero ?

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The correct Answer is:
`(1)/(200) ;`
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