In which of the following,is a displacement r | vedclass

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(D) displacement reaction occurs when a more reactive metal displaces a less reactive metal from its salt solution.According to the reactivity series

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Solution of $AgNO_3 +$ Coin of copper

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(D) displacement reaction occurs when a more reactive metal displaces a less reactive metal from its salt solution.According to the reactivity series of metals,the order of reactivity is $Mg > Al > Fe > Cu > Ag$.In option $A$,$Cu$ is less reactive than $Na$,so no reaction occurs.In option $B$,$Al$ is less reactive than $Mg$,so no reaction occurs.In option $C$,$Ag$ is less reactive than $Fe$,so no reaction occurs.In option $D$,$Cu$ is more reactive than $Ag$. Therefore,$Cu$ can displace $Ag$ from the $AgNO_3$ solution,resulting in the reaction: $Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$.

In which of the following,is a displacement reaction possible?

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