A) \[Cu,\text{ }Fe,\text{ }Zn,\text{ }Al,\text{ }Mg\]
B) \[Fe,\text{ }Zn,\text{ }Cu,\text{ }Al,\text{ }Mg\]
C) \[Mg,Cu,Fe,Zn,Al\]
D) \[Mg,\text{ }Al,\text{ }Zn,\text{ }Fe,\text{ }Cu\]
Correct Answer: D
Solution :
Since a metal with lower electrode potential is a stronger reducing agent, \[Mg\]can displace all the given metals, \[Al\] can displace all metals except \[Mg\]. \[Zn\]can displace all metals except \[Mg\] and \[Al\]. Fe can displace only \[Cu\]. The order in which they can displace each other from their salt solutions is \[Mg,\text{ }Al,\text{ }Zn,\text{ }Fe,\text{ }Cu.\]You need to login to perform this action.
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