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For the following reaction, which chemical is behaving as an oxidising agent and which chemical is behaving as a reducing agent?                CuO + Mg → MgO + CuOxidising agent Reducing agentA CuO MgB MgO CuC CuO MgOD Mg Cu

Question

For the following reaction, which chemical is behaving as an oxidising agent and which chemical is behaving as a reducing agent?                CuO + Mg → MgO + CuOxidising agent Reducing agentA CuO MgB MgO CuC CuO MgOD Mg Cu

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Solution

In the given reaction, CuO + Mg → MgO + Cu, the oxidising agent is the substance that is reduced by gaining electrons, and the reducing agent is the substance that is oxidised by losing electrons.

  1. Identify the oxidation states of each element in the reactants and products:

    • In CuO, Cu is in +2 oxidation state and O is in -2 oxidation state.
    • In Mg, Mg is in 0 oxidation state.
    • In MgO, Mg is in +2 oxidation state and O is in -2 oxidation state.
    • In Cu, Cu is in 0 oxidation state.

  2. Determine which elements have changed oxidation state:

    • Cu has been reduced from +2 to 0.
    • Mg has been oxidised from 0 to +2.

  3. Identify the oxidising and reducing agents:

    • The oxidising agent is CuO because it has been reduced (gain of electrons).
    • The reducing agent is Mg because it has been oxidised (loss of electrons).

So, the answer is A: CuO is the oxidising agent and Mg is the reducing agent.

This problem has been solved

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