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TOLLEN'S SILVER MIRROR TEST FOR ALDEHYDES
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Presence Shown By Metallic Silver Precipitation
The silver ion is complexed with ammonia to form Ag(NH3)2+ (the Tollen's reagent). When the silver is reduced to metal by the aldehyde (dextrose) it precipitates out as a silver mirror on the reaction vessel.
Copyright:© 2002 Richard Megna - Fundamental Photographs
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