Statement I: In the oxalic acid vs. (in the presence of dilute ) titration, the solution needs to be heated initially to , but no heating is required in Ferrous ammonium sulphate (FAS) vs. titration (in the presence of dilute ).

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Solution

Q.
Given below are two statements:

Statement I: In the oxalic acid vs. $K M n O_{4}$ (in the presence of dilute $H_{2} S O_{4}$ ) titration, the solution needs to be heated initially to $60^{o} C$ , but no heating is required in Ferrous ammonium sulphate (FAS) vs. $K M n O_{4}$ titration (in the presence of dilute $H_{2} S O_{4}$ ).

Statement II: In oxalic acid vs. $K M n O_{4}$ titration, the initial formation of $M n S O_{4}$ takes place at high temperature, which then acts as a catalyst for further reaction. In the case of FAS vs. $K M n O_{4}$ , heating oxidizes $F e^{2 +}$ into $F e^{3 -}$ 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: [2025]

1 Statement I is false but Statement II is true

2 Both Statement I and Statement II are true

3 Statement I is true but Statement II is false

4 Both Statement I and Statement II are false

Ans.
(2)

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