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When an acid solution of oxalic acid at ...

When an acid solution of oxalic acid at `80^(@)C` is titrated with `KMnO_(4)` solution, the first few drops of `KMnO_(4)` are decoloured slowly but decolourisation occurs fast later. This is because 

A

of increase in the concentration of `CO_(2)` formed

B

one of the products `Mn^(+2)` acts as auto catalyst

C

both `Mn^(2+) and K^(+)` ions act as auto catalyst

D

`KMnO_(4)` catalyses the reaction at the later stages

Text Solution

Verified by Experts

The correct Answer is:
B
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