Given below are two statements: Statement I: In the oxalic acid vs $$KMnO_{4}$$ (in the presence of dil $$H_{2}SO_{4}$$) titration the solution needs to be heated initially to $$60^{\circ}C$$, but no heating is required in Ferrous ammonium sulphate (FAS) vs $$KMnO_{4}$$ (in the presence of dil $$H_{2}SO_{4}$$) Statement II: In oxalic acid vs $$KMnO_{4}$$ titration, the initial formation of $$Mnso_{4}$$ takes place at high temperature, which then acts as catalyst for further reaction. In the case of FAS vs $$KMnO_{4}$$, heating oxidizes $$Fe^{2+}$$ and $$Fe^{3+}$$ 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

We analyze both statements about $$KMnO_4$$ titrations.

Statement I: In oxalic acid vs $$KMnO_4$$ titration, heating to 60 degrees C is needed initially, but not in FAS vs $$KMnO_4$$ titration.

The reaction of oxalic acid with $$KMnO_4$$ is slow at room temperature. Initial heating to about 60 degrees C is required to start the reaction. Once some $$Mn^{2+}$$ is formed, it acts as an autocatalyst and the reaction proceeds without further heating. For FAS (Ferrous Ammonium Sulphate) vs $$KMnO_4$$, the reaction is fast at room temperature, so no heating is needed. Statement I is TRUE.

Statement II: In oxalic acid vs $$KMnO_4$$, $$MnSO_4$$ formed initially acts as catalyst. In FAS vs $$KMnO_4$$, heating oxidizes $$Fe^{2+}$$ to $$Fe^{3+}$$ by atmospheric oxygen, introducing error.

The first part is correct: $$Mn^{2+}$$ ions (from $$MnSO_4$$) act as an autocatalyst for the permanganate-oxalate reaction. The second part is also correct: heating the FAS solution would cause aerial oxidation of $$Fe^{2+}$$ to $$Fe^{3+}$$, which would consume some $$Fe^{2+}$$ before it reacts with $$KMnO_4$$, leading to errors. Statement II is TRUE.

Both statements are true. The answer is Option B) Both Statement I and Statement II are true.