A student added few pieces of aluminium metal to two test tubes A and B

Metals and Non-metals (10)

A student added few pieces of aluminium metal to two 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 solutions of aluminium sulphate and copper sulphate.

In which test tube or test tubes will she observe colour change ? On the basis of this experiment, state which one is the most reactive metal and why. 

Answer

In the test tube A, B, D she will observe colour change 

Aluminum is the most reactive metal, because it displaces Iron, Zinc and Copper from their aqueous salt solutions.

Exam Year: 2018