When KMnO 4 solution is added to oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time because

Question

Philoid · Accepted Answer

The following reaction takes place:

5C₂O₄^2– + 2MnO₄ ^– + 16H⁺→ 2Mn²⁺ + 8H₂O + 10CO₂

Here, KMnO₄ is a reactant in the reaction which forms Mn²⁺ which acts as an auto-catalyst. The reaction is slow initially because MnO₄^- is getting converted to Mn²⁺ but once Mn²⁺ forms, the reaction becomes faster due to the catalytic action

When KMnO4 solution is added to oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time because

When KMnO₄ solution is added to oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time because