Given below are two statements :
Statement I : In 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°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 a 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 :