Repeated use of which of the following fertilizers would increase the acidity of the soil?

The percentage degree of hydrolysis of a salt of weak acid $(HA)$ and weak base $(BOH)$ in its $0.1 \ M$ solution is found to be $10 \%$. If the molarity of the solution is $0.05 \ M$,the percentage hydrolysis of the salt should be ....... $\%$.

Which of the following salts will not undergo hydrolysis?

In which of the following salts,only cationic hydrolysis is involved?

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

Which among the following salts turns red litmus blue in its aqueous solution?