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Why `Cr` is used for coating `Fe` ?
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Why `Cr` is used for coating `Fe` ?
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Jan 5, 2022
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JackTerrance
Why Cr is used for coating Fe ? Select the correct answer from above options
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Jan 5, 2022
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JackTerrance
Cr is non- corroding metal which forms a protective layer on Fe .
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Q: Given standard electrode potentials `K^(o+)|K=-2.93V, Ag^(o+)|Ag=0.80V`, `Hg^(2+)|Hg=0.79V` `Mg^(2+)|Mg=-2.37V,Cr^(3)|Cr=-0.74V` Arrange these metals
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