$pH$ of $10^{-3} \ M$ $NaCl$ solution at $25 \ ^oC$ is

An aqueous solution of $CuSO_4$ will be:

$pH$ of a solution obtained by mixing equal volume of $0.2 \ M \ NaOH$ and $0.2 \ M \ CH_3COOH$ $(K_a = 10^{-5})$ is

The degree of hydrolysis in hydrolytic equilibrium $A^{-} + H_2O \rightleftharpoons HA + OH^{-}$ at salt concentration of $0.001 \ M$ is $(K_a = 1 \times 10^{-5})$

Which one of the following salts gives an acidic solution in water?

Which of the following aqueous solutions of salts will have the highest $pH$ value?