Which one of the following four metals would be displaced from the solution of its salts by other three metals?
A
Mg
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B
Ag
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C
Zn
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D
Cu
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Solution
The correct option is BAg In a displacement reaction, a more reactive metal of the activity series can displace a less reactive one in its salt solution.
Reactivity order is: Mg>Zn>Cu>Ag.
Thus, we see that Ag is least reactive and of the given four metals, Ag would be displaced from the solution of its salts by the other three metals.