Question

Arun had taken three test tubes P. O. R with iron sulphate solution in all the test tubes.
He dropped a piece of Cu Zn and Au in each test tube. In which test tube does the reaction take
place? Why? Write related balanced equation

Answer 1

Answer:

In test tube O as zinc is more reactivate than iron so it displaces iron from its salt solutions.

FeSO4+Zn---------ZnSO4+Fe

green colourless

Answer 2

Explanation:

In the test tube P no reaction will take place.

As iron being much more reactive than copper it cannot displace the iron.

In test tube O zinc will displace the iron from the iron sulphate solution the following reaction takes place.

Zn + FeSo4 ------- ZnSo4 + Fe

In test tube R there will be no reaction as the gold being the least reactive it cannot displace the iron in the iron sulphate solution.