Question

Sakshi was comparing the reactivity of different metals for her science project. She added iron filings in four test tubes A,B,C,D containing aqueous solutions of ZnSO4, CuSO4, FeSO4 and Al2(SO4)3 respectively as shown in the figure –

a. In which of the test tubes she will observe the reaction to be most vigorous

b. What is the reason for her observation?

c. Write a well-balanced equation of the reaction in (b)

Answer 1

(a) Test tube B 

(b) Copper is lower to Iron in the reactivity series so displacement reaction will be maximum 

(c) Fe (s) + CuSO₄ (aq,) —> FeSO₄(aq.) + Cu (s)