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.

The gas produced when $KMnO_{4}$ oxidises $C_{2} O_{4}^{2 -}$ in acidic medium is treated with NaOH and then the solution was mixed with aqueous $Z n C l_{2}$ to form a product P. the number of metal ions present in one formula unit of P is ___________

Answer:

4.00

Solution:

gas produced when $KMnO_{4}$ oxidises $C_{2} O_{4}^{2 -}$ in acidic medium is $C O_{2}$ which on treatment with NaOH forms $N a_{2} C O_{3}$ . The precipitate P is $Z n C O_{3} .3 Z n (O H)_{2}$

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

⏱ 2mℹ️ Source: QB

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