Chemistry - Salt Analysis Question with Solution | TestHub
ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Medium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
The basic radical are detected by various reagent through precipitation reaction and some of the precipitate soluble in excess of reagent.
Which of the following cation does not form precipitate on reaction with KI.
Options:
Answer:
D
Solution:
In cation analysis, some metal ions form precipitates with **KI solution** due to the formation of insoluble iodides.
Pb²⁺ gives a yellow precipitate of PbI₂.
Cu²⁺ gives a white precipitate of CuI (with the formation of iodine).
Bi³⁺ gives a black precipitate of BiI₃ / bismuth iodide species.
Zn²⁺ does not form a precipitate with KI.
Correct Answer: (D) Zn²⁺
Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS Dry Test, Group Analysis, Group 1,2
⏱ 2mℹ️ Source: QB
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