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Q32 (NDA-I/2019) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Basic chemical principles Answer Verified

Which one of the following statements is NOT correct for the given reaction?

Result
Your answer: —  Â·  Correct: C
Explanation

The reaction between iron (Fe) and copper sulfate (CuSO4) is a single displacement reaction where iron, being more reactive, displaces copper. In this process, iron is oxidized to Fe(II) ions, making it the reducing agent, while copper ions are reduced to solid copper. This transfer of electrons confirms it is a redox reaction. The initial blue color of the copper sulfate solution fades and turns green due to the formation of ferrous sulfate (FeSO4). According to the reactivity series, iron is positioned above copper, meaning iron is more reactive than copper. Therefore, the statement claiming copper is more reactive than iron is incorrect. This fundamental principle of the activity series dictates that a more reactive metal can displace a less reactive one from its salt solution.

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