1.

The salt Al(OH)_(3) involved in the following two equilibria. Al(OH)_(3)(s)hArrAl^(3+)(aq)+3OH^(-)(aq),K_(sp) Al(OH)_(3)(s)+OH^(-)(aq)hArrAl(OH)_(4)^(-)(aq),K_(c) Which of the following relationship is CORRECT at which solubility is minimum?

Answer»

`[OH^(-)]=((K_(sp))/(K_(c)))^(1//3)`
`[OH^(-)]=((K_(c))/(K_(sp)))^(1//3)`
`[OH^(-)]=SQRT(((K_(sp))/(K_(c)))^(1//4))`
`[OH^(-)]=((3K_(sp))/(K_(c)))^(1//4)`

Answer :d


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