Chemistry - Electrochemistry Question with Solution | TestHub
ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsHard2 minQB
ChemistryHardmatching list
Match Column I with Column II. Select the correct mapping. Standard reduction potentials: E°(F₂/F⁻) = +2.87 V; E°(Li⁺/Li) = −3.5 V; E°(Au³⁺/Au) = +1.4 V; E°(Br₂/Br⁻) = +1.09 V.
Column I | Column II |
|---|---|
(i) F₂ | (a) metal strongest reducing agent |
(ii) Li | (b) metal ion weakest oxidising agent |
(iii) Au³⁺ | (c) non-metal best oxidising agent |
(iv) Br⁻ | (d) unreactive metal |
(v) Au | (e) anion oxidised by Au³⁺ |
(vi) Li⁺ | (f) anion weakest reducing agent |
(vii) F⁻ | (g) metal ion oxidising agent |
Options:
Answer:
A
Solution:
F⁻ is the weakest reducing anion, so (vii) maps only to (f). The source key also gives (g), a metal-ion description, to F⁻; that erroneous duplicate is removed in this corrected conversion.
Stream:JEESubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells
⏱ 2mℹ️ Source: QB
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