Which of the following factors can affect the activity of a solid catalyst?
The pH of the reaction mixture
The presence of impurities in the reactants
The type of solvent used in the reaction
All of the above
The activity of a solid catalyst can be influenced by a variety of factors, including the pH of the reaction mixture, the presence of impurities in the reactants, and the type of solvent used in the reaction. Changes in these factors can affect the catalyst's active sites, leading to changes in the efficiency and selectivity of the catalytic reaction.