Chemistry plz do reply soon

[niassu]

inQ 4 F (ii) here
http://www.xtremepapers.com/CIE/Cambridge%20IGCSE/0620%20-%20Chemistry/0620_w06_qp_6.pdf


I would like to know why it is drawn below zinc ones instead of being below the magnesuim powder one

plz soooon reply

 

[Mohsin41]

because magnesium is very high than the copper in reactivity siries and it can displace copper from solution.