When potassium iodide is added...| JEE Advanced 2024 | Ionic

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When potassium iodide is added to an aqueous solution of potassium ferricyanide, a reversible reaction is observed in which a complex P is formed. In a strong acidic medium, the equilibrium shifts completely towards P. Addition of zinc chloride to P in a slightly acidic medium results in a sparingly soluble complex Q. The number of zinc ions present in the molecular formula of Q is _____

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