Distinguish between the following pair of compound using the test… - Vidyadip

Question

Distinguish between the following pair of compound using the test given within bracket.
Iron (II) Sulpate an and iron(III) using ammonium hydroxide)

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Answer

Iron (II):
$
\underset{\text { (Light green solution) }}{ FeSO _4}+2 NH _4 OH \longrightarrow \underset{\text { (Dirty green ppt.) }}{ Fe ( OH )_2}+\left( NH _4\right)_2 SO _4
$Iron (III):
$
\underset{\text { (Yellow solution) }}{ FeCl _3}+3 NH _4 OH \longrightarrow \underset{\text { (Reddish brown ppt.) }}{ Fe ( OH )_3}+ NH _4 Cl
$

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