what combinations of Zn, Al, ZnSO4 and Al2(SO4)3 would you make to illustrate that Zn is less active than Al?

Answer 1

Zn(s) + Al2(SO4)3 (aq) ==> no reaction
and
Al(s) + ZnSO4(aq) ==> Zn(s) + Al2(SO4)3(aq)