If a black precipitate remaining from the separation of cr3, Ask an Expert

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IF a black precipitate remaining from the separation of Cr3+ as well as Fe2+ ions from Ni2+ ion is dissolved in HCl and HNO3. A few NH3 is added, followed by several drops of dimethylglyoxime.

(1) Explain a colorless solution results.

(2) Define what might have gone wrong?

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Category:- Chemistry
Reference No.:- M91188383

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