Get Answers to all your Questions

header-bg qa

Which method can be used to find out strength of reductant/oxidant in a solution? Explain with an example.

Answers (1)

In order to determine the strength of a reductant/oxidant, we can use the titration method; it can be performed with the help of a redox-sensitive indicator.

The usage indicators in redox titration are as shown below:


In one scenario, the reagent itself is intensely coloured, e.g., permanganate ion, MnO_{4}^{-}. In here, MnO_{4}^{-} acts as a self-indicator. In this case, the visible endpoint is attained after the last of the reductant(Fe^{2+} or C_{2}O_{4}^{2-})is oxidised. Now, the first lasting tinge of pink colour appears as MnO_{4}^{-} concentration as low as 10^{-5}mol (10^{-6} mol L^{-1}). This make sure of a minimal ‘overshoot’ in colour beyond the equivalence point, which is the point from where the reductant and the oxidant are equal in terms of their mole stoichiometry.

Posted by


View full answer