Chemistry - Salt Analysis Question with Solution | TestHub
ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Medium2 minQB
ChemistryMediummultiple choice
A mixture containing two salts, and , is analyzed. S 1 contains a cation that gives a green borax bead in the oxidizing flame. contains a cation that gives a blue borax bead in the oxidizing flame but turns red/opaque in the reducing flame. Which of the following is/are correct?
Options:(select one or more)
Answer:
A, B, C, D
Solution:
Color transitions of Cr, Cu, and Co in different flames; Redox stability of metaborates.
Solution:
* Cr³⁺: Oxidizing (Green), Reducing (Green).
* Cu²⁺: Oxidizing (Blue), Reducing (Red/Opaque/Colorless).
* Co²⁺: Oxidizing (Blue), Reducing (Blue).
Option (A) matches S1. Option (B) matches S2.
Option (C) is correct as Cr(III) is stable. Option (D) is a correct statement about Cobalt.
Final Answer: Option (A, B, C, D)
Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS Dry Test, Group Analysis, Group 1,2
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...