1.

What is meant by displacement reaction ? Give examples.

Answer»

Solution : CHEMICAL reaction in which more reactive ELEMENT displaces the less reactive element from its compound (solution) is called displacement reaction.
Examples :
(1)`Zn(s)+2AgNO_(3)(aq) to Zn(NO_(3))_(2)(aq)+2Ag(s)`
(2) `Fe(s)+ CuSO_(4)(aq) to FeSO_(4)(aq)+Cu(s)`
(3) `Zn(s)+CuSO_(4)(aq) to ZnSO_(4)+Cu(s)`
(4) `Pb(s)+ CuCl_(2)(aq) to PbCl_(2)(aq)+ Cu(s)`
Here, Zn, Fe and Pb are more reactive than AG and Cu.


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