Question

26. Strips of zinc, iron, magnesium and copper are taken in the test tubes A,
B, C and D respectively. Same quantity of ferrous sulphate solution is
added to these test tubes. In which test tubes chemical reaction will
occur? Why ? Write the chemical equations for the reactions taking place
here.​

Answer 1

Answer:black residue will appear due to formation of iron in tubes (II) and (IV) because of displacement reaction taking place and the reaction is given below...

2Al(s)+3FeSO  

4

​  

(aq)→Al  

2

​  

(SO  

4

​  

)  

3

​  

(aq)+3Fe(s) (Black residue)

Zn(s)+FeSO  

4

​  

(aq)→ZnSO  

4

​  

(aq)Fe(s) (Black residue)

Answer 2

Answer:

give answered ki job for so do an so