Which of the following is displaced by \( \mathrm{Fe} \) ? (a) Ag (b) \( \mathrm{Zn} \) (c) \( \...

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Which of the following is displaced by \( \mathrm{Fe} \) ?
(a) Ag
(b) \( \mathrm{Zn} \)
(c) \( \mathrm{Na} \)
(d) All of these
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