Question

a student added few pieces of aluminium metal to 2 test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate.
In the second part of her experiment she added iron metal to another test tubes C and D containing aqueous solution of Aluminium Sulphate and copper sulphate.
In which test tube or test tubes will she observed colour change? On the basis of this experiment state which one is the most reactive metal and why?

Answer 1

The most reactive metal is aluminium because it displaces both Copper and iron

Answer 2

The colour changes can be observed in testubes A,B and D.

Aluminium is the more reactive metal as it displaces iron and copper from their sal solution...