Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with K4[Fe(CN)6] is __________ . Cu2 | JEE Mains Chemistry Past Papers — Chem-Mantra | Chem-Mantra

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Question

Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with K4[Fe(CN)6] is __________ . Cu2+, Fe3+, Ba2+, Ca2+, NH4+, Mg2+, Zn2+

Answer: .

💡 Solution & Explanation

Cu2[Fe(CN)6] (brown), Fe4[Fe(CN)6]3 (blue), K2Ca[Fe(CN)6] (white), K2Zn3[Fe(CN)6]2 (white)

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