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- Solve! - Redox Reaction and Electrochemistry - JEE Main
Amount of oxalic acid present in a solution can be determined by its titration with solution in the presence of
. The titration gives unsatisfactory result when carried out in the presence of
, because
- Option 1)
oxidises oxalic acid to carbon dioxide and water
- Option 2)
gets oxidised by oxalic acid to chlorine
- Option 3)
Furnishes
ions in addition to those from oxalic acid
- Option 4)
reduces permanganate to
Answers (1)
As we learnt in
Standard Electrode Potential Value -
-
Oxalic acid present in a solution can be determined by its titration with solution in the presence of
Titration cannot be done in the presence of because
being a strong oxidizing agent oxidises
and get itself reduced to
So actual amount of oxalic acid in solution can not be determined.
Option 1)
oxidises oxalic acid to carbon dioxide and water
This option is incorrect.
Option 2)
gets oxidised by oxalic acid to chlorine
This option is incorrect.
Option 3)
Furnishes ions in addition to those from oxalic acid
This option is incorrect.
Option 4)
reduces permanganate to
This option is correct.
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