AgCl is soluble ina)Aqua regiab)H₂SO₄c)HCld)NH₃Correct answer is optio...
Solubility of AgCl in NH₃
AgCl is a sparingly soluble salt in water due to its high lattice energy. However, it dissolves readily in aqueous ammonia (NH₃) due to the formation of a complex ion.
AgCl + 2NH₃ ⇌ [Ag(NH₃)₂]+ + Cl-
The complex ion [Ag(NH₃)₂]+ has a lower lattice energy than AgCl and is more stable in solution. This results in the dissolution of AgCl in NH₃.
Solubility of AgCl in Aqua Regia, H₂SO₄, and HCl
Aqua regia is a mixture of nitric acid and hydrochloric acid. It is a strong oxidizing agent and can dissolve many metals, but it cannot dissolve AgCl.
H₂SO₄ is a strong acid but it is not effective in dissolving AgCl due to the high lattice energy of the salt.
HCl can dissolve AgCl, but only to a limited extent. This is because HCl reacts with AgCl to form a soluble complex ion.
AgCl + HCl ⇌ [AgCl₂]-
However, the formation of this complex ion is limited by the availability of Cl- ions in the solution. Once all the Cl- ions have reacted with AgCl to form [AgCl₂]-, further dissolution of AgCl is not possible.
Therefore, the correct answer is option D, NH₃, as it is the most effective solvent for AgCl.
AgCl is soluble ina)Aqua regiab)H₂SO₄c)HCld)NH₃Correct answer is optio...
When a large enough concentration of NH3 is added to an insoluble precipitate of AgCl, the ammonia binds to the Ag+ ion and forms the complex ion. ... The formation of the complex [Ag(NH3)2]+ ion makes it behave like ionic therefore making it soluble.AgCl is also not soluble in water, because the forces favouring formation of silver hydroxide are too weak to break the ionic bonds between silver and chlorine in AgCl .