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

Question

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

Options:

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

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.

C . ferric iodide is a covalent compound whereas ferric chloride is ionic

D . ferric iodide is a covalent compound whereas ferric chloride is ionic

Answer: Option B
:
B

2 F e^{3 +} + 2 I^{-} ⟶ 2 F e^{2 +} + I_{2}

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