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

Mohr's salt is a

If the $pKa$ of lactic acid is $5$,then the $pH$ of $0.005 \ M$ calcium lactate solution at $25^{\circ} \ C$ is $........ \times 10^{-1}$ (Nearest integer). The structure of lactic acid is given below:

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

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

In which of the following salts does hydrolysis take place?