PLEASE EXPLAIN ME THE CONCEPT OF REDOX TITRATION, DOUBLE TITRATION AND BACK TITRATION IN DETAIL.

Dear student,

REDOX TITRATION: deals with the reaction involving oxidation and reduction between analyte and titrant. Titration involves the use of redox indicators.
Redox titration relies on the oxidation of analyte ( solution of unknown concentration). Titrant ( solution of known concentration) is often an oxidising agent.
Eg of redox titration; Treating unknown concentration of Fe sample with known concentration of KMnO₄​.
Known concentration of KMnO₄​ is taken in burette and is titrated against unknown sample of Fe taken in conical flask. Equivalence point is indicated by faint pink colour. At equivalence point: E_(forward) = E_(reverse)  .
Reaction involved is-
Reduction half equation:$Mn{O_4}^{-}+ 8H^{+} + 5e^{-}\to M{n}^{2+}+4H_{2}O$
Oxidation half equation: $F{e}^{2+} \to F{e}^{3+} +e^{-}$
Overall equation: $Mn{O_4}^{- }+ 8H^{+}+ 5F{e}^{2+} \to M{n}^{2+} + 4H_{2}O + 5F{e}^{3+}$

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