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प्रश्न
Give the reactions involved in electroplating of iron using silver.
रासायनिक समीकरणे/रचना
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उत्तर
During silver plating on an iron object, a solution of sodium argento-cyanide Na[Ag(CN)2] is used as the electrolyte:
At Cathode (Iron article): Silver ions gain electrons and deposit as shiny metal.
\[\ce{Ag+ + e- -> Ag}\]
At Anode (Pure silver block): Silver atoms lose electrons to maintain the ion concentration in the solution.
\[\ce{Ag -. Ag+ + e-}\]
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