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Question

Chemistry Question on d -and f -Block Elements

When KMnO4KMnO_4 is added to oxalic acid, the decolourisation is slow in the beginning but becomes instantaneous after sometime because

A

Mn2+Mn^{2+} acts as autocatalyst

B

CO2CO_2 is formed as the product

C

reaction is exothermic

D

MnO4MnO^-_4 catalyses the reaction

Answer

Mn2+Mn^{2+} acts as autocatalyst

Explanation

Solution

See Comprehensive Review (Properties of KMnO4KMnO_4)