Question

Iron is dash reactive than copper ?​

Answer 1

Iron is more reactive than copper.

Explanation:

• Let us consider a reaction when an iron nail is dropped into a beaker containing a solution of copper sulphate, after a while, both the solution and the iron nail change colour.

• The nail gets a brownish coating and the solution turns green.

• The nail has a coating of Copper on its surface and the solution is detected to have the presence of an iron containing compound.

                   $Fe(s)\;+\;CuSO_4(aq)\rightarrow\;Cu(s)\;+\;FeSO_4(aq)$

• This reaction infers that iron is more reactive than copper as it displaces copper from its solution and iron passes into solution as $Fe^{2+}$ ions and ferrous sulfate solution is formed.

• This is known as a double displacement reaction.