QJEEM25Ch6389: JEE Main 2025 Chemistry - Class 11 JEEM25Ch6389 Solution: Given below are two statements: Statement I: In the oxalic acid …
Given below are two statements:
Statement I: In the oxalic acid vs (in the presence of dil ) 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 dil )
Statement II: In oxalic acid vs titration, the initial formation of takes place at high temperature, which then acts as catalyst for further reaction. In the case of FAS vs , heating oxidizes into 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
Multiple Choice Options
- A Statement I is false but Statement II is true
- B Statement I is true but Statement II is false
- C Both Statement I and Statement II are true
- D Both Statement I and Statement II are false
Step-by-Step Verified Solution
For the titration: Oxalic acid v/s
This reaction is slow at room temperature, but becomes fast at . Manganese(II) ions catalyse the reaction; thus, the reaction is autocatalytic; once manganese(II) ions are formed, it becomes faster and faster.
The titration of FAS v/s do not require heating because at higher temperature the oxidation of to by atmospheric will be prominent.