1.

The hydrolysis constant for `ZnCl_(2)` will be where `K_(b)` is effective dissociation constant of base `Zn^(++)`A. `K_(h)=(K_(w))/(K_(b))`B. `K_(h)=(K_(w)^(2))/(K_(b))`C. `K_(h)=(K_(w)^(2))/(K_(b)^(2))`D. `K_(h)=(K_(b))/(K_(w)^(2))`

Answer» Correct Answer - B
`Zn^(++)+2H_(2)OhArrZn(OH)_(2)+2H^(+)`
`:. K_(h)=([Zn(OH)_(2)][H^(+)]^(2))/([Zn^(++)])` (`1`)
`Zn(OH)_(2)hArrZn^(++)+2OH^(-)`
`:. K_(b)=([Zn^(++)][OH^(-)]^(2))/([Zn(OH)_(2)])`, `K_(w)=[H^(+)][OH^(-)]`
`:. (K_(w)^(2))/(K_(b))=K_(b)`


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