What is a common consequence of using an inappropriate catalyst in a commercial reaction?

Using an inappropriate catalyst in a commercial reaction typically leads to reduced efficiency and increased costs. A catalyst is designed to speed up a chemical reaction by providing an alternative reaction pathway with a lower activation energy. However, if the catalyst is not suitable for the specific reactants or conditions of the reaction, it may not facilitate the reaction effectively, resulting in slower reaction rates and lower conversion of reactants into products.

Furthermore, using an inappropriate catalyst can lead to the formation of unwanted byproducts, which can complicate the purification process and consume additional resources, further driving up costs. In a commercial setting, this inefficiency can lead to decreased overall productivity, leading to longer processing times and the necessity for additional raw materials or energy to achieve the desired output.

In contrast, the other options imply positive outcomes—such as increased production yield, faster reaction completion, or improved product quality—which generally are not associated with the use of an unsuitable catalyst. Instead, these outcomes are more likely with a correctly chosen and applied catalyst, underscoring the importance of selecting the right catalyst for maximizing efficiency and economic viability in commercial reactions.