The oxidation of oxalic acid by acidified `KMnO_4` becomes fast as the reaction progresses due to :

Options

A. promoter
B. catalytic poison
C. autocatalysis
D. inhibitor

Answer

C

Explanation

Since the rate of oxidation of oxalic acid by acidified `KMnO_(4)` increases with the progress of the reaction so the reaction is catalysed by one of the products of reaction
`2 MnO_(4)^(-) +5C_(2)O_(4)^(2) +16H^(+)to 2Mn^(2+) +10CO_(2) +8H_(2)O`The `Mn^(2+)` ion formed acts as catalyst