Question

Mole of thiosulphate ions required to react completely with one mole of permanganate ion in faintly alkaline medium is

Answer 1

The balanced chemical reaction for the process of permanganate anion oxidizing thiosulphate in a faintly alkaline medium to produce sulfate ions is as follows:

8 MnO4- + 3 S2 O3 2-  + H2O → 8 MnO2 + 6 S O4 2- + 2 OH-

Therefore, you can see that 8 moles of permanganate is required for 3 moles of thio sulfate.

Therefore, for one mole of permanganate, 3/8 or 0.375 moles of thiosulfate is required.