Which of the following is true for autocatalysis?
One of the reactants of reaction act as catalyst.
One of the products of reaction act as catalyst.
One of the products of reaction act as promoter for catalyst.
One of the reactant of reaction act as promoter for catalyst.
In autocatalysis, one of the product of a reaction behave as a catalyst for that reaction and increase the rate of the reaction. Example:
In the given reaction, act as a catalyst for the reaction and increase the rate of reaction.
Hence option 2 is correct.