Which is used as autocatalyst:-

1.	Which is used as autocatalyst:-
Answer» `Al_(2)O_(3)` `CaC_(2)` `MnSO_(4)` All of these Solution :Addition of a few crystals of `MnSO_(4)` greatly accelerates the reduction by oxalic acid of purple `KMnO_(4)` to nearly colourless MANGANESE (II). When no manganese (II) ion is added, the REACTION initially proceeds slowly, but the rate gradually increases because the product manganese (II) autocatalyses the reaction. `5H_(2)C_(2)O_(4)+2KMnO_(4)+3H_(2)SO_(4)to2MnSO_(4)+K_(2)SO_(4)+10CO_(2)+8H_(2)O`

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