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Question
State one appropriate observation of the following:
A few drops of dilute hydrochloric acid are added to silver nitrate solution, followed by the addition of ammonium hydroxide solution.
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Solution
When a few drops of dil. HCl are added to AgNO3, a thick, curdy white precipitate of AgCl is formed. When an excess of NH4OH is added to the AgCl precipitate, it forms a complex salt, [Ag(NH3)2]Cl, which is soluble in nitric acid.
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