The IUPAC name of K2[Ni(CN)4]is ______.
Potassium tetracyanatonickelate (II)
Potassium tetracyanonickelate (II)
Potassium tetracyanonickel (III)
Potassium tetracyanatonickel (II)
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A solution containing 2.675 g of CoCl3.6NH3 (molar mass = 267.5 g mol–1) is passed through a cation exchanger. The chloride ions obtained in solution were treated with excess of AgNO3 to give 4.78g of AgCl (molar mass = 143.5 g mol–1). The formula of the complex is (At. Mass of Ag = 108 u)