Which among the following ionic species has t | vedclass

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(A) According to the Hardy-Schulze rule,the precipitating power of an ion is directly proportional to its valency. Since the precipitating power incre

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$Cl^{-}$

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(A) According to the Hardy-Schulze rule,the precipitating power of an ion is directly proportional to its valency. Since the precipitating power increases with the increase in the magnitude of the charge on the ion,the ion with the lowest valency will have the least precipitating power. Comparing the valencies: $Cl^{-}$ $(1)$,$SO_{4}^{2-}$ $(2)$,$Mg^{2+}$ $(2)$,$Al^{3+}$ $(3)$. Therefore,$Cl^{-}$ has the least precipitating power.

Which among the following ionic species has the least precipitating power?

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