Question

a) Define activity series of metals. Arrange the metals gold, copper, iron and magnesium in

order of their increase in reactivity.

(b) What will you observe when:

i. Some zinc pieces are put in copper sulphate solution.

ii. Some silver pieces are put into green coloured ferrous sulphate solution.

Answer 1

the series that shows the gradual decrease in the reactive news of metals is called the reactivity series..
Mg...Iron... Copper.....Gold

Zinc Sulphate
No reaction

Answer 2

gold<cu<fe<mg
b)zinc will displace cu to form znso4
ii)no reaction will take place