1.

Which of the following precipitate does not dissolve even in large excess of NH_(4)OH

Answer»

AgCl
AgBr
AgI
None of these

Solution :AgCl and AgBr DISSOLVE in `NH_(4)OH` and form complexes but AgI doesn’t react with `NH_(4)OH`. E.g.,
`AgCl+2NH_(4)OH to UNDERSET("COMPLEX")([Ag(NH_(3))_(2)])Cl+2H_(2)O`


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