KCET 2005 Chemistry Solved Paper

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Question : 19 of 60

Marks: +1, -0

Corrosion of iron is essentially an electrochemical phenomenon where the cell reaction are ...........

Fe is oxidised to Fe2+, and dissolved oxygen in water is reduced to
⊖
∘
H
Fe is oxidised to Fe3+ and H2O is reduced to O22−
Fe is oxidised to Fe2+ and H2O is reduced to O2−.
Fe is oxidised to Fe2+ and H2O is reduced to O2

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