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Compare the solubility of Fe(OH)(3) (K(s...

Compare the solubility of `Fe(OH)_(3) (K_(sp) = 4 xx 10^(-38))` and `Ni(OH)_(2).(K_(sp) = 2 xx 10^(-16))` at `pH = 5.0`

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A 1 litre solution containing NH_(4)Cl and NH_(4)OH has hydroxide ion ion concentration of 10^-6) mol//litre. Which of the following hydroxides could be precipitated when the solution is added to 1 litre solution of 0.1 M metal ions? (I) Ba(OH)_(2)(K_(sp)=5xx10^(-3)) , (II) Ni(OH)_(2)(K_(sp)=1.6xx10^(-16)) (III) Mn(OH)_(2) (K_(sp)=2xx10^(-13)) , (IV) Fe(OH)_(2) (K_(sp)=8xx10^(-16))

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