Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryFaraday's Law of Electrolysis/Electrolytic CellsMedium2 minQB

ChemistryMediumsingle choice

What fraction of a mole of iron metal is produced by the passage of 15 A current through 1 litre of a solution containing 0.3 mole of $Fe^{3 +}$ ions for 3860 sec ?

Options:

Answer:

Solution:

Total charge = $\frac{3860 \times 15}{96500} = 0.6 F$

$F e^{3 +} + e^{-} ⟶ F e^{2 +}$

$0.3 m o l$ $0.6 F$

$0$ $0.3 F$ $0.3 m o l$

$F e^{2 +} + 2 e^{-} ⟶ F e$

$0.3 m o l$ $0.3 F$

$0.15 m o l$ $0$ $0.15 m o l$

Stream:JEESubject:ChemistryTopic:ElectrochemistrySubtopic:Faraday's Law of Electrolysis/Electrolytic Cells

⏱ 2mℹ️ Source: QB

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