Question

When $KMnO_{4}$ solution is added to oxalic acid solution the decolourisation is slow in the beginning but becomes instantaneous after some time because

• A. $CO_{2}$ is formed as the product
• B. Reaction is exothermic
• C. $MnO_{4}^{-}$ catalyses the reaction
• D. $Mn^{2 +}$acts as autocatalyst.

Answer 1

Answer: (D)

$Mn^{2 +}$acts as autocatalyst.

Answer 2

$Mn^{2 +}$acts as autocatalyst.