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प्रश्न
Identify the cation of the following case:
NaOH solution when added to solution (A) gives a reddish brown precipitate
उत्तर
Fe3+ ion :
\[\ce{FeCl3 + 3NaOH -> \underset{\text{(Reddish brown ppt.)}}{Fe(OH)3} + 3NaCl}\]
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