Chemistry - Salt Analysis Question with Solution | TestHub
ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Medium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
Solution (R) produces white precipitate (S) with Na₂CO₃. Part of (P) produces a red color in a Bunsen flame test. Gas (Q) produces a black precipitate with CuSO₄.
What would happen to solution if compound is in above reaction sequence :
Options:
Answer:
C
Solution:
Compound (P): Calcium nitride (Ca₃N₂) reacts with dilute HCl to produce calcium chloride (CaCl₂) and ammonia gas (NH₃), which is gas (Q).
Reaction:
Effect on CuSO₄: When NH₃ gas is passed into a CuSO₄ solution, it initially forms a pale blue precipitate of copper(II) hydroxide [Cu(OH)₂].
Conclusion: Therefore, the correct observation is the production of a blue precipitate, making (C) the correct option.
Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS Dry Test, Group Analysis, Group 1,2
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...