Question

Based on the reactions given below, arrange the metals involved in these reactions in decreasing order of reactivity. Give suitable explanations. (i)Zn +CuSO4- ZnSO4 + Cu (ii)Cu + 2AgNO3-Cu(NO3)2 + 2Ag (iii)Zn + FeSO4- ZnSO4 + Fe (iv)Fe +CuSO4-FeSO4 + Cu

Answer 1

Answer:

The reactivity series is as follows:

K

Ba

Na

Ca

Mg

Al

Zn

Cr

Fe

Cd

Co

Ni

Sn

Pb

Cu

Hg

Ag

Au

Pt.

Answer 2

Answer:

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Fe > Cu > Zn > Ag

all these reactions are example of displacement reaction

Cu is replaced by Zn

Ag is replaced by Cu

Fe is replaced by Zn

Cu is replaced by Fe

hope it helps

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