Silver Halo Complex
Easychemistry
AgCl dissolves in aqueous ammonia forming [Ag(NH3)2]+ because:
Select the correct option:
Solution
Incorrect! Answer:
NH3 acts as ligand forming soluble complex
- Insolubility: Silver Chloride (AgCl) is a white precipitate with a very low Ksp.
- Ligand Addition: Ammonia (NH3) molecules have lone pairs on the Nitrogen atom.
- Coordination: They coordinate to the Ag+ ion present in the equilibrium mixture to form the diamminesilver(I) complex [Ag(NH3)2]+.
- Equilibrium Shift: As the complex forms and remains soluble in water, it effectively 'pulls' more AgCl into solution according to Le Chatelier's principle.
- Specifics: This is a classic test in qualitative analysis; AgCl is soluble in ammonia, but AgBr is only partially soluble and AgI is insoluble.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
About This Question
- Subject
- chemistry
- Chapter
- d- and f-block elements
- Topic
- silver halo complex
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
NH3 acts as ligand forming soluble complex
- Insolubility: Silver Chloride (AgCl) is a white precipitate with a very low Ksp.
- Ligand Addition: Ammonia (NH3) molecules have lone pairs on the Nitrogen atom.
- Coordination: They coordinate to the Ag+ ion present in the equilibrium mixture to form the diamminesilver(I) complex [Ag(NH3)2]+.
- Equilibrium Shift: As the complex forms and remains soluble in water, it effectively 'pulls' more AgCl into solution according to Le Chatelier's principle.
- Specifics: This is a classic test in qualitative analysis; AgCl is soluble in ammonia, but AgBr is only partially soluble and AgI is insoluble.
This easy difficulty chemistry question is from the chapter d- and f-block elements, covering the topic of silver halo complex. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse d- and f-block elements questions on RankGuru.