<prompt> Among the following, the maximum redox potential is for:NADHNADSuccinateFumarateUbiquinoneFe3 Fe2  <response>: D i.e. Fe2 Because electrons tend to flow spontaneously from carries of lower redox potential Edeg to carries of higher redox potential. The order sequence of electron carriers in ETC of mitochondria and so the increasing order of redox potential is Substrate -- NADP NADPH -- NADVNADH -- NADH dehydrogenase FMN NADH dehydrogenase FMNH2 -- FADFADH2 -- Ubiquinone or Coenzyme Q -- Fe3 Fee in cytochromes b -- C -- a - a3 -- 02 