Conversion of Fe2+ to Fe3+
Oxidising agent : bromine water Reducing agent : Fe2+ ions
Fe2+ --------> Fe3+ + e Reduction half equation:
Br2 + 2 e -------> 2 Br- Overall ionic equation: 2 Fe2+ + Br2 ----------> 2 Fe3+ + 2 Br- Observation:
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Conversion of Fe3+ to Fe2+
Oxidising agent : Fe2+ ions Reducing agent : zinc Oxidation half equation:
Zn -------> Zn2+ + 2 e Reduction half equation:
Fe3+ + e --------> Fe2+ Overall ionic equation: 2 Fe3+ + Zn ---------> 2 Fe2+ + Zn2+ Observation:
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