D-And F-Block Elements Ques 489
Question: When $ KMnO_4 $ is added to oxalic acid, the decolourisation is slow in the beginning but becomes instantaneous after sometime because
Options:
A) $ M{{n}^{2+}} $ acts as autocatalyst.
B) $ CO_2 $ is formed as the product.
C) Reaction is exothermic.
D) $ MnO_4^{-} $ catalyses the reaction.
Show Answer
Answer:
Correct Answer: A
Solution:
Little bit acid is required for reaction
$ \therefore M{{n}^{2+}} $ acts as autocatalyst.
