Higher Homework 3D

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    2. During a redox process in acid solution, iodate ions, IO₃⁻(aq), are converted into iodine, I₂(aq).

    IO₃⁻(aq) → I₂(aq)
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    3. Iodide ions can be oxidised using acidified potassium permanganate solution.

    The equations are: 2I⁻(aq) → I₂(aq) + 2e⁻ MnO₄⁻(aq) + 8H⁺(aq) + 5e⁻ → Mn²⁺(aq) + 4H₂O(l)
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    8.

    NO₃⁻(aq) + 4H⁺(aq) + 3e⁻ → NO(g) + 2H₂O(l) Cu(s) → Cu²⁺(aq) + 2e⁻
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    10. Molten lithium hydride can be electrolysed using platinum electrodes.

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