Which of the following aqueous solutions will have a $pH$ less than $7.0$?

Do you expect different products in solution when aluminium $(III)$ chloride and potassium chloride are treated separately with $(i)$ normal water,$(ii)$ acidified water,and $(iii)$ alkaline water? Write equations wherever necessary.

Which of the following salts undergoes hydrolysis in water?

The correct formula to calculate the hydroxyl ion concentration of an aqueous solution of $NH_4NO_3$ is

Which of the following will not undergo hydrolysis in water?

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