Which one of the following statements is NOT correct for the given reaction ? Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)
Iron is the reducing agent
The solution turns green in colour after the reaction
Copper is a more reactive metal than iron
The reaction is an example of a redox reaction
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-1 – 2019
– Statement B is correct: Copper sulphate solution is typically blue in colour. Iron(II) sulphate (FeSO₄) solution, formed after the reaction, is green in colour. So, the solution’s colour changes from blue to green.
– Statement C is incorrect: The displacement of copper by iron indicates that iron is more reactive than copper. Copper is less reactive than iron.
– Statement D is correct: Iron is oxidized (Fe → Fe²⁺) and copper ions are reduced (Cu²⁺ → Cu). Reactions involving both oxidation and reduction are called redox reactions.