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विधुत रासायनिक सिद्धांत के अनुसार, आयरन के जलीय संक्षारण में कैथोड पर निम्न क्रिया होगी
A. `O_(2)(g)+4H^(+)(aq)+4e^(-)to2H_(2)O(l)`
B. `Fe(s)toFe^(3+)(aq)+2e^(-)`
C. `Fe^(2+)(aq)toFe^(3+)(aq)+e^(-)`
D. `H_(2)(g)+2OH^(-)(aq)to2H_(2)O(l)+2e^(-)`

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कैथोड पर : `{:(2H_((aq))^(+)+2e^(-)to2H),(ul(" "2H+(1)/(2)O_(2)toH_(2)O" ")),(2H^(+)+(1)/(2)O_(2)+2e^(-)toH_(2)O):}`

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