$A$ solution of $FeCl_3$ in water acts as acidic due to

The $pK_a$ of a weak acid,benzoic acid and $pK_b$ of a weak base,ammonium hydroxide are $4.25$ and $4.75$ respectively. Then the $pH$ of $0.1 \ M$ solution of ammonium benzoate will be

When a salt of a weak acid and a weak base is dissolved in water at $25\,^{\circ}C$,the $pH$ of the resulting solution will always

The degree of hydrolysis of a $0.1 \ M$ solution of $ArNH_3^+ Cl^-$ is $0.01$. Find the degree of hydrolysis in a $0.4 \ M$ solution of $ArNH_3^+ Cl^-$.

Calculate $pH$ and degree of hydrolysis $(h)$ of $0.01 \ M$ $CH_3COONa$ solution. Given: $K_h = 5.6 \times 10^{-10}$.

Which among the following is an example of a salt of a weak acid and a strong base?