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Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF CATIONS, Group 3, 4, 5, 6, 0Medium2 minPYQ_2002

ChemistryMediumstatement

How do we differentiate between $Fe^{3 +}$ and $Cr^{3 +}$ in group III?

Options:

Answer:

Solution:

$NH_{4}^{+}$ ions are increased to suppress release of $OH$ ions, hence solubility product of $Fe (OH)_{3}$ is attained. Colour of precipitate is different.

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS, Group 3, 4, 5, 6, 0

⏱ 2mℹ️ Source: PYQ_2002

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