Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF ANIONS CLASS A-SUBGROUP IMedium2 minQB

ChemistryMediummultiple choice

When crystals of potassium chloride is heated with $Mn_{2} O_{3}$ (mixedoxide) and conc. $H_{2} SO_{4}$ then

Answer:

A, B, D

Solution:

When KCl is heated with Mn₂O₃ and conc. H₂SO₄, chlorine gas is produced.

$M n_{2} O_{3} + 6 K Cl + 3 H_{2} S O_{4} \to 2 M n S O_{4} + 3 K_{2} S O_{4} + 3 C l_{2} + 3 H_{2} O$

This is a redox reaction where Cl⁻ is oxidized to Cl₂ and Mn(III) is reduced.

After dilution, the solution gives ppt with excess KOH due to the formation of metal hydroxide.

The given statements are correct: (A), (B), (D).

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF ANIONS CLASS A-SUBGROUP I

⏱ 2mℹ️ Source: QB

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