Chapter 8: Problem 7
In the reaction \(\mathrm{KMnO}_{4}+\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{H}_{2} \mathrm{C}_{2} \mathrm{O}_{4} \rightarrow\) Products, \(\mathrm{Mn}^{2+}\) ions act as a/an (a) positive catalyst (b) negative catalyst (c) auto catalyst (d) enzyme catalyst