$A$ weak acid with $pK_a$ $5.9$ and a weak base with $pK_b$ $5.8$ are mixed in equal proportions. The $pH$ of the resulting solution is:

The $pH$ is less than $7$ for the solution of:

The degree of hydrolysis of a $0.01 \ M$ ammonium acetate solution is = ........ [ $K_h = 3.175 \times 10^{-5}$ ]

The $pH$ of an aqueous solution of $CH_3COONH_4$ is found to be $6.7$ at $25\,^{\circ}C$. The concentration of the $CH_3COONH_4$ solution is ($K_a$ for $CH_3COOH = 1.0 \times 10^{-5}$ and $pK_b$ for $NH_4OH = 4.4$)

The $pH$ for anionic hydrolysis is given by:

$A$ white salt is readily soluble in water and gives a colourless solution with a $pH$ of about $9$. The salt would be