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pH of saturated solution of Al(OH)3 is 9...

pH of saturated solution of `Al(OH)_3` is` 9`. The solubility product `(K_sp)` of `Al(OH)_3` is

A

`1/9*10^(-20)`

B

`1/27*10^(-20)`

C

`1/3*10^(-27)`

D

`1/3*10^(-20)`

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