Chemistry - Salt Analysis Question with Solution | TestHub
ChemistrySalt AnalysisANION miscellaneous/mixedMedium2 minQB
ChemistryMediummultiple choice
Passage / Comprehension
H₂SO₄ and HNO₃ are important analytical reagents. These reagents act as strong acids and oxidizing agents. H₂SO₄ is also used in a number of dehydration reactions.
Which of the following anion(s) produce volatile product/fumes due to oxidising nature of conc.
Options:(select one or more)
Answer:
B, D
Solution:
Concentrated H₂SO₄ acts as a strong oxidizing agent and oxidizes certain anions to form volatile acidic fumes.
I⁻ and Br⁻ are oxidized to I₂ (violet fumes) and Br₂ (brown fumes) respectively.
These are volatile products, so they appear as fumes.
CO₃²⁻ only gives CO₂ (not due to oxidation by H₂SO₄), so it is not included here.
Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:ANION miscellaneous/mixed
⏱ 2mℹ️ Source: QB
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