For which of the following pairs of salts is the degree of hydrolysis independent of dilution?

$0.5 \, M$ ammonium benzoate is hydrolysed to $0.25 \%$ percent,hence its hydrolysis constant is

Calculate the $pH$ of a $0.5 \ M$ aqueous solution of $KCN$. Given that $pK_{b}$ for $CN^{-} = 4.70$. (in $.5$)

Do you expect different products in solution when aluminium $(III)$ chloride and potassium chloride are treated separately with $(i)$ normal water,$(ii)$ acidified water,and $(iii)$ alkaline water? Write equations wherever necessary.

The aqueous solution of copper sulfate is acidic because...

What is the correct relationship between the $pH$s of isomolar solutions of sodium oxide $(pH_1)$,sodium sulphide $(pH_2)$,sodium selenide $(pH_3)$ and sodium telluride $(pH_4)$?