The role of multiple reactions in flow‐through porous electrodes has been investigated theoretically. The reaction sequences studied include simultaneous deposition of several metals, deposition of a metal in the presence of a redox system, and an ECE sequence which is characteristic of many electro‐organic synthesis reactions. The model accounts for mass transport, multiple charge transfer reactions, homogeneous chemical reactions, ohmic and geometric parameters. Results are compiled in a series of graphs which elucidate electrode behavior over a wide region of parameter space.