Redox Reactions And Electrochemistry Ques 5

Question: The metal used in galvanizing of iron is [MP PET 1985, 96]

Options:

A) $ Pb $

B) $ Zn $

C) $ Al $

D) $ Sn $

Show Answer

Answer:

Correct Answer: B

Solution:

$ Z{{n}^{2+}}/Zn.,E^{o}=-0.76,V $ $ A{{l}^{3+}}/AlE^{o}=-1.662 $ $ S{{n}^{2+}}/Sn,E^{o}=-0.136 $ $ P{{b}^{2+}}/Pb,E^{o}=-0.126 $ In galvanizing action $ Zn $ is coated over iron.



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