A galvanic cell needs to be set up in which the reduction of Cr³+ to Cr (s) takes place at the cathode. Which of (18) the following redox pairs must be placed at the anode? (A) Fe²+/Fe (s) Sn²+/Sn (s) Zn²+/Zn(s) Fe³+/Fe (s) Pb²+/Pb (s) mot inemets mulassunto opatol ne nose and serit egolazi muinsus (B) (C) (D) (E)

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.