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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

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The correct Answer is:
B
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AAKASH SERIES-SURFACE CHEMISTRY-LEVEL - I (EXERCISE - I)(CATALYSIS)
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