Ferric chloride stable but ferric iodide unstable why?
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I- ion is stronger reducing agent than Cl- ion.Hence Fe3+ ion is easily reduced by I- ion to Fe2+ ion & itself gets oxidized to I2.But this doesn`t happen in case of FeCl3.Hence FeCl3 is stable but FeI3 is unstable.2Fe3+ +2I- ->2Fe2+ +I2.
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Answer:
I- ion is stronger reducing agent than Cl- ion.Hence Fe3+ ion is easily reduced by I- ion to Fe2+ ion & itself gets oxidized to I2.But this doesn`t happen in case of FeCl3.Hence FeCl3 is stable but FeI3 is unstable.2Fe3+ +2I- ->2Fe2+ +I2.
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