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Question

In the titration between oxalic acid and acidified potassium permanganate, the manganous salt formed during the reaction and catalyses the reaction. The manganous salt acts as:

A
promoter
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B
positive catalyst
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C
autocatalyst
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D
none of the above
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Solution

The correct option is C autocatalyst
In the tit-ration between oxalic acid and acidified potassium permanganate, the manganous salt formed during the reaction and catalyses the reaction. The manganous salt acts as auto catalyst because the rate of reaction depends on the manganous ions formed,so manganous ions catlyze the reaction.
Hence option C is correct.

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