Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisANION miscellaneous/mixedMedium2 minQB

ChemistryMediumsingle choice

Passage / Comprehension

Which of the following anions does not give red brown gas with conc. $H_{2} SO_{4}$ and $K_{2} Cr_{2} O_{7}$ crystals :-

Options:

Answer:

Solution:

Halides react with strong oxidising mixture to form characteristic gases.
Cl⁻, Br⁻ and NO₃⁻ give coloured/oxidising fumes.
I⁻ gives iodine vapour (violet), not red-brown gas.
Hence it does NOT give red-brown gas.
Answer: (C) I⁻

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

⏱ 2mℹ️ Source: QB

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