Assertion (A) :- Br − ions do not interfere in chromyl chloride test for Cl − Reason (R) : Br - on oxidation with acidified K 2 Cr 2 O 7 liberates Br 2 which dissolves in NaOH to give a colourless solution.

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ChemistrySalt AnalysisANION miscellaneous/mixedMedium2 minQB

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Assertion (A) :- $Br^{-}$ ions do not interfere in chromyl chloride test for $Cl^{-}$

Reason (R) : Br^- on oxidation with acidified K₂Cr₂O₇ liberates Br₂ which dissolves in NaOH to give a colourless solution.

Answer:

Solution:

Assertion (A) is incorrect. Br⁻ ions interfere by forming Br₂ which doesn't form chromyl chloride. Reason (R) is correct.

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

⏱ 2mℹ️ Source: QB

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