Iron is protected by coating it with a thin layer of : (a) \( \mathrm{Cu} \) (b) \( \mathrm{Zn} ...

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Iron is protected by coating it with a thin layer of :
(a) \( \mathrm{Cu} \)
(b) \( \mathrm{Zn} \)
(c) \( \mathrm{Pb} \)
(d) \( \mathrm{Mg} \)
\( P \)
W.
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