Aluminium is more reactive than iron. But aluminium is less easily corroded than iron because
- AAluminium is a noble metal
- BOxygen forms a protective oxide layer
- CIron undergoes reaction easily with water
- DIron forms mono and divalent ions
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Similar Questions
What is the electron movement during the corrosion of $Fe$?
Easy
View SolutionIdentify the correct statement.
DifficultJEE MAIN 2016
View SolutionGiven the half-cell reactions:
$2H^+ + \frac{1}{2}O_2 + 2e^- \to H_2O(l), E^o = 1.23 \ V$
$Fe^{2+} + 2e^- \to Fe(s), E^o = -0.44 \ V$
Calculate the value of $\Delta G^o$ in $kJ$ for the overall corrosion reaction.
$2H^+ + \frac{1}{2}O_2 + 2e^- \to H_2O(l), E^o = 1.23 \ V$
$Fe^{2+} + 2e^- \to Fe(s), E^o = -0.44 \ V$
Calculate the value of $\Delta G^o$ in $kJ$ for the overall corrosion reaction.
Medium
View SolutionWhat is corrosion of metal? Give its characterization and damage.
Medium
View SolutionExplain how rusting of iron is envisaged as setting up of an electrochemical cell.
Medium
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