Silver ion removal

If silver nitrate (AgN()3) is added to an alkyl halide in a good ionizing solvent, the silver ion removes the halide ion to give a carbocation. This technique can force some unlikely ionizations, often giving interesting rearrangements (see Problem 6-29). 

Reduction of silver ions onto cheaper metals forms silver-plate. The object to be plated is made the cathode. At the pure silver anode, oxidation of silver metal to silver ions replaces the silver ions removed from the solution by plating at the cathode. ... 

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