0.1 M aqueous solution of `HClO_4, ZnCl_2 and K_2S` are taken , then increasing order of pH of solutions will be :

pH of aqueous K_(2)S solution is

The concentration of each of the aqueous solutions of NaCl, NH_(4)Cl, NaCn and HCl is 0.1(M). Arrange these solutions in the increasing order of their pH.

0.1 M aqueous solution of K_4[Fe(CN)_6] will have the same freezing point as 0.1 M aqueous solution of

0.1 M aqueous solution of K_4[Fe(CN)_6] will have the same freezing point as 0.1 M aqueous solution of

The increasing order of pH of 0.1M solution of NaCl, NH_4Cl , NaCN and HCI is

One lit. of aqueous solution of H_(2)SO_(4) contain 4.9 g of the acid . 100 ml of this solution is taken in a 1 lit. flask and diluted with water upto the mark . The pH of the dilute solution is

An aqueous solution of HCl is 10^(-9) M HCl . The pH of the solution should be

The pH of 10M HCl aqueous solution is