Question
Chemistry Question on d -and f -Block Elements
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
MnO4− catalyses the reaction
Answer
Mn2+ acts as autocatalyst
Explanation
Solution
See Comprehensive Review (Properties of KMnO4)