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Question

Study the following chemical reactions.
Fe+CuSO4FeSO4+Cu
2AgNO3+CuCu(NO3)2+2Ag

The metals present in the reactions can be written in the increasing order of reactivity as:

A
Fe,Cu,Ag
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B
Cu,Fe,Ag
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C
Ag,Fe,Cu
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D
Ag,Cu,Fe
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Solution

The correct option is D Ag,Cu,Fe
We know that the more reactive metal displaces the less reactive one. Here in the first reaction Fe Displaces Cu so, Fe is more reactive. In the second reaction, Cu displaces Ag so, Cu is more reactive.

So, the increasing order is Ag < Cu < Fe.

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