Ferric iodide is very unstable but ferric chloride is a stable compound. This is because

hydration energy of ferric iodide is less than that of ferric chloride

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I^{-}

ion is a stronger reducing agent as compared to

C l^{-}

ion and thus,

F e^{3 +}

is easily reduced by

I^{-}

ion to

F e^{2 +}

ion.

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ferric iodide is a covalent compound whereas ferric chloride is ionic

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ferric iodide is a covalent compound whereas ferric chloride is ionic

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Solution

The correct option is B $I^{-}$ ion is a stronger reducing agent as compared to $C l^{-}$ ion and thus, $F e^{3 +}$ is easily reduced by $I^{-}$ ion to $F e^{2 +}$ ion.
$2 F e^{3 +} + 2 I^{-} ⟶ 2 F e^{2 +} + I_{2}$

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Similar questions

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Ferric iodide is very unstable but ferric chloride is a stable compound. This is because

The correct option is B I− ion is a stronger reducing agent as compared to Cl− ion and thus, Fe3+ is easily reduced by I− ion to Fe2+ ion.2Fe3++2I−⟶2Fe2++I2

The correct option is B $I^{-}$ ion is a stronger reducing agent as compared to $C l^{-}$ ion and thus, $F e^{3 +}$ is easily reduced by $I^{-}$ ion to $F e^{2 +}$ ion.
$2 F e^{3 +} + 2 I^{-} ⟶ 2 F e^{2 +} + I_{2}$