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Will Fe be oxidised to Fe^(2+) by reacti...

Will Fe be oxidised to `Fe^(2+)` by reaction with 1.0 M HCl? `E^(@)` for `Fe//Fe^(2+)=+0.44` volt.

Text Solution

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The reaction will occur if Fe is oxidised to `Fe^(2+)`
`Fe+2HCl rarr FeCl_(2)+H_(2)`
Writing two half reactions,
`{:(Fe rarr Fe^(2+)+2e^(-),"Oxidation, "E_(Fe//Fe^(2+))^(@)=0.44" volt"),(2H^(+)+2e^(-) rarr H_(2),"Reduction, "E_(H^(+)//H)^(@)=0.0" volt"),(," "bar("Adding, emf = 0.44 volt")):}`
Since, emf is positive, the reaction shall occur.
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