Fe(OH)_2 is precipitated from Fe(II) solution | vedclass

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(C) When $Fe(OH)_2$ is precipitated from $Fe(II)$ solutions,it initially appears as a white solid. Upon exposure to air,it undergoes oxidation. The da

Vedclass · Accepted Answer

$Fe_2O_3 \cdot (H_2O)_n$

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(C) When $Fe(OH)_2$ is precipitated from $Fe(II)$ solutions,it initially appears as a white solid. Upon exposure to air,it undergoes oxidation. The dark green color is due to the presence of both $Fe(OH)_2$ and $Fe(OH)_3$. Finally,it turns brown due to the complete oxidation of $Fe(II)$ to $Fe(III)$,forming hydrated ferric oxide,$Fe_2O_3 \cdot (H_2O)_n$ (also known as rust).

$Fe(OH)_2$ is precipitated from $Fe(II)$ solutions as a white solid but turns dark green and then brown due to the formation of:

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