In the following questions a statement of assertion (A) followed by a statement of reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : Redox couple is the combination of oxidised and reduced form of a substance involved in an oxidation or reduction half cell.
Reason (R) : In the representation E^{\Theta }_{Fe^{3+}/Fe^{2+}}  and E^{\Theta }_{Cu^{2+}/Cu}, Fe^{3+}/Fe^{2+} and Cu^{2+}/Cu are redox couples.
(i) Both A and R are true and R is the correct explanation of A.
(ii) Both A and R are true but R is not the correct explanation of A.
(iii) A is true but R is false.
(iv) Both A and R are false.

Answers (1)

The answer is the option (ii) Both A and R are true, but R is not the correct explanation of A.

Explanation: A redox couple is defined as a pair of compounds or elements having together the oxidised and reduced forms of it and taking part in an oxidation or reduction half-reaction.

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