Question

arrange the following metals in order of reactivity Au,Al,Ag,Cu,Mg,Fe,Na,Zn,K,Ca

Answer 1

k, Na, Ca, Mg, Al, Zn, Fe, Cu, Ag, Au,

Answer 2

Always follow this trend for electrochemical series....K Na,Ca,Mg,Al,Zn,Fe,Pb,H,Cu,Hg,Ag,Au,Pt