Chemistry - Salt Analysis Question with Solution | TestHub
ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Medium2 minQB
ChemistryMediummultiple choice
Regarding the borax bead test for Iron salts:
Options:(select one or more)
Answer:
A, B, C
Solution:
Concepts:
Oxidation states of Iron; flame chemistry.
Solution:
• Fe₂O₃ + 3B₂O₃ → 2Fe(BO₂)₃ (Yellow-brown).
• Reducing flame: 2Fe(BO₂)₃ + C → 2Fe(BO₂)₂ + B₂O₃ + CO (Bottle Green).
• Extended reduction of Fe²⁺ to Fe⁰ is difficult in a standard Bunsen flame, but the intensity of green can diminish.
Final Answer: Option (A, B, C)
Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS Dry Test, Group Analysis, Group 1,2
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...