In the reaction \( \mathrm{P} \) \( \mathrm{KMnO}_{4}+\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{H}_...

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In the reaction
\( \mathrm{P} \) \( \mathrm{KMnO}_{4}+\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4} \rightarrow \) products,

W.
\( \mathrm{Mn}^{++} \)ions act as :-
(1) Positive catalyst
(2) Negative catalyst
(3) Auto catalyst
(4) Enzyme catalyst
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