Question

Observe the following diagram and identify the type of reaction and write observation.

Answer 1

1. The type of reaction occurring in the given diagram is displacement reaction.
   \[\ce{\underset{\text{Iron}}{Fe_{(s)}} + \underset{\text{Copper sulphate}}{CuSO_{4(aq)}} -> \underset{\text{Ferrous sulphate}}{FeSO_{4(aq)}} + \underset{\text{Copper}}{Cu_{(s)}}}\]
2. Observations:

• The blue colour of the solution will turn to green in test tube A and copper coating will form on iron nail because iron displaces copper from copper sulphate.
• The reaction will not occur in test tube B because iron is more reactive than copper.