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

Question

When KMnO4 is added to oxalic acid, the decolourisation is slow in the beginning but becomes instantaneous after sometime because (A) Mn2+ acts as autocatalyst (B) CO2 is formed as the product (C) reaction is exothermic (D) MnO-4 catalyses the reaction

Tardigrade Admin · Accepted Answer

See Comprehensive Review (Properties of KMnO4)

Q. When $K M n O_{4}$ is added to oxalic acid, the decolourisation is slow in the beginning but becomes instantaneous after sometime because

$M n^{2 +}$ acts as autocatalyst

$C O_{2}$ is formed as the product

reaction is exothermic

$M n O_{4}^{-}$ catalyses the reaction

See Comprehensive Review (Properties of $K M n O_{4}$ )

Q. When KMnO4​ is added to oxalic acid, the decolourisation is slow in the beginning but becomes instantaneous after sometime because

Mn2+ acts as autocatalyst

CO2​ is formed as the product