Question

what do you mean by redox couple?

Answer 1

a redox couple may be defined as a combination of the oxidised and reduce forms of the same substance taking part in an oxidation or reduction half reaction. A redox couple is usually represented by separating oxidised form and the reduced form of a vertical line which represents the interface (solid/solution). for example,in a galvanic cell,the redox couples are represented as Zn and Cu. in both cases oxidised,form is put before the reduced form