Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisANION miscellaneous/mixedHard2 minQB

ChemistryHardnumerical

Passage / Comprehension

KMnO₄ act as oxidising agent in acidic, basic and neutral medium.

The type of product depends on the medium. For example, non metals such as $C l_{2}, B r_{2}, I_{2} an d S$

tend to destabilize in basic medium whereas in acidic form they usually get stabilized in elemental form.

A salt "X" forms a precipitate "Q" on treatment with $K M n O_{4}$ in alkaline medium. The same salt on treatment with $A g N O_{3}$ produces a white precipitate which on boiling of aqueous suspension turns into black. The average oxidation of central atom in anion of "X" is_________

Answer:

2.00

Solution:

The salt is $S_{2} O_{3}^{2 -}$ salt.

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

⏱ 2mℹ️ Source: QB

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