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Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisCATION miscellaneous/mixedMedium2 minPYQ_2024

ChemistryMediumnumerical

Passage / Comprehension

Paragraph: 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.

Question: The number of zinc ions present in the molecular formula of $Q$ is

Answer:

2.50

Solution:

$Zn^{2 +} + K_{4} [Fe (CN)_{6}] \to K_{2} Zn_{3} [Fe (CN)_{6}]_{2}$ OR $Zn^{2 +} + K_{4} [Fe (CN)_{6}] \to Zn_{2} [Fe (CN)_{6}]$

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:CATION miscellaneous/mixed

⏱ 2mℹ️ Source: PYQ_2024

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