The aqueous solution of sodium cyanide $(NaCN)$ is:

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

When $C_6H_5NH_3^+ Cl^-$ salt is dissolved in water,it undergoes hydrolysis. Find the equilibrium constant of the hydrolysis reaction if the ionization constant of the weak base is $10^{-4}$.

Arrange the aqueous solutions of the following salts in the increasing order of $pH$: $CuSO_4$ $(I)$,$NaCN$ $(II)$,$KCl$ $(III)$.

The dissociation constant of a substituted benzoic acid at $25^{\circ}C$ is $1.0 \times 10^{-4}$. The $pH$ of a $0.01 \ M$ solution of its sodium salt is

What will be the $pH$ of an aqueous solution of $1.0 \ M$ ammonium formate? (Given: $pK_a = 3.8$ and $pK_b = 4.8$)