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Question

Reason
In the representation $$ E_{F e^{3+} / F e^{2+}}^{\Theta}, E_{C u^{2+} / c u}^{\Theta} $$, $$F e^{3+} / F e^{2+}$$ and $$ \mathrm{Cu}^{2+} / \mathrm{Cu} $$ are redox couples.
Assertion
Redox couple is the combination of oxidised and reduced form of a substance involved in an oxidation or reduction half cell.
Redox couple is the combination of oxidised and reduced form of a substance involved in an oxidation or reduction half cell.

A
Assertion is correct but Reason is incorrect
B
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
C
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
D
Both Assertion and Reason are incorrect
Solution
Verified by Toppr

Correct option is A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
A redox couple is defined as pair of compounds or elements having together the oxidised and reduced forms of it and taking part in an oxidation or reduction half-reaction. So, $$Fe^{3+}/Fe^{2+}$$ and $$Cu^{2+}/Cu$$ are redox couples.
Both assertion and reason are true reason is the correct explanation of assertion.

Hence, option $$A$$ is correct.

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Similar Questions
Q1
Reason
In the representation $$ E_{F e^{3+} / F e^{2+}}^{\Theta}, E_{C u^{2+} / c u}^{\Theta} $$, $$F e^{3+} / F e^{2+}$$ and $$ \mathrm{Cu}^{2+} / \mathrm{Cu} $$ are redox couples.
Assertion
Redox couple is the combination of oxidised and reduced form of a substance involved in an oxidation or reduction half cell.
Redox couple is the combination of oxidised and reduced form of a substance involved in an oxidation or reduction half cell.
View Solution
Q2
Assertion(A): Redox couple is the combination of oxidized and reduced form of a substance involved in an oxidation or reduction half cell.

Reason(R): In the representation EFe3+/Fe2+ and ECu2+/Cu, Fe3+/Fe2+ and Cu2+/Cu are redox couples.
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Q3
Reason
In a redox rection, oxidant is reduced by accepting electrons and reductant is oxidised by losing electrons
Assertion
In a rection $$Zn(s)+Cu{SO}_{4}(aq)\rightarrow Zn{SO}_{4}(aq)+Cu(s)$$. $$Zn$$ is a reductant but itself get oxidised
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Q4
(a) Explain the following in terms of gain or loss of oxygen with one example each:
(i) oxidation (ii) reduction
(b) When copper powder is heated strongly in air, it forms copper oxide. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced.
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Q5

(a) Define the following in terms of gain or loss of hydrogen with one example each :

(i) oxidation (ii) reduction

(b) When a magnesium ribbon is heated, it burns in air to form magnesium oxid. Write a balanced chemical equation for this reaction. Name (i) substance oxidised, and (ii) substance reduced.

View Solution