Published by:
CGP EDU Academic Team
Published on: August 14, 2026
When 
solution is added to hot oxalic acid solution, the decolourization is slowed in
the beginning but becomes instantaneous after some time. This is because
A
acts as auto catalyst. B
is formed. C
Reaction is exothermic.
D
catalyzes the reaction.
Text Solution
Verified by ExpertsThe correct answer is:
A
acts as a catalyst for the reaction of 
oxalic acid. This reaction is used for titration where 
act as self indicator.
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