JEE Main 2025 — Redox Reactions Question with Solution

Given below are two statements: Statement I: In the oxalic acid vs ${\mathrm{KMnO}}_4$ (in the presence of dil ${\mathrm{H}}_2{\mathrm{SO}}_4$ ) titration the solution needs to be heated initially to $60^{\circ }\mathrm{C}$, but no heating is required in Ferrous ammonium sulphate (FAS) vs ${\mathrm{KMnO}}_4$ titration (in the presence of dil ${\mathrm{H}}_2{\mathrm{SO}}_4$ ) Statement II: In oxalic acid vs ${\mathrm{KMnO}}_4$ titration, the initial formation of ${\mathrm{MnSO}}_4$ takes place at high temperature, which then acts as catalyst for further reaction. In the case of FAS vs ${\mathrm{KMnO}}_4$, heating oxidizes ${\mathrm{Fe}}^{2+}$ into ${\mathrm{Fe}}^{3+}$ by oxygen of air and error may be introduced in the experiment. In the light of the above statements, choose the correct answer from the options given below