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Question
Protection of iron (Eº(Fe2+/Fe) = -.23 V; (Eº(Fe3+/Fe) = -0.04 V) from corrosion can be accomplished by making an electrical contact between iron and certain other metals. Metal(s) that would provide protection is(are)1) Mg (Eº= -.38 V).
2) Ni (Eº= -.23 V).
3) Zn (Eº= -.76 V).
4) Pb(Eº= -.13 V).
A) 1 only
B) 4 only
C) 1 and 3
D) 2 and 4
E) 3 and 4
Answer
This answer is hidden. It contains 1 characters.
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