Which of the following cation forms a chocolate brown ppt with K4[Fe(CN)6]?
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CuSO4 reacts with K4[Fe(CN)6] to form a chocolate brown ppt.
- Chocolate brown ppt is formed on reaction of cupric chloride and potassium ferrocyanide.
- In addition to being used as a laboratory reagent and a moderate oxidizing agent in organic synthesis, potassium ferricyanide is also employed in the tempering of iron and steel, sensitive coatings on blueprint paper, wood staining, wool dyeing, pigment manufacture, and electroplating.
- Due to the emission of deadly hydrogen cyanide gas when acid is added to an aqueous solution, potassium ferrocyanide is somewhat poisonous.
- Even though it isn't mutagenic, it can irritate the skin if consumed, inhaled, or comes into touch with it.
- Powder that is brownish-yellow is copper chloride.
- In addition to being utilized as a feed additive and wood preservative, it is also employed in agriculture, petroleum, textiles, metallurgy, photography, and textiles.
- Additionally, it is employed in the production of pigments for glass and ceramics as well as Acrylonitrile.
Hence, CuSO4 reacts with K4[Fe(CN)6] to form a chocolate brown ppt.
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