What single reagent solution could be used to affect the separation of the Ni(oH)2 and Fe(oH)3
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(NH4)OH (aq) ,Ni(OH)2 is a green precipitate and Fe(OH)3 is a orange precipitate , upon addition of NH4OH Ni(OH)2 dissolves in it, Ni2+ forming a complex [Ni(NH4)4] 2+ while Fe(OH)3 doesn't dissolve in it
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