the following reactions are observed to occur
CuSo4+Zn= ZnSO4+Cu
3ZnSP4+2Al=Al2(SO4)3+3Zn
2AgNO3+Cu(NO3)2+2Ag
arrange Cu Zn Al n Ag in decreasing order
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https://www.meritnation.com/ask-answer/question/what-is-the-reactivity-series/materials-metals-and-non-metals/5416019
https://www.meritnation.com/ask-answer/question/what-is-the-reactivity-series/materials-metals-and-non-metals/5416019