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Elementary Productions: Tollens' reagent, Silver Mirror Test

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Published on Feb 10, 2008

The Silver mirror test is a qualitative test for aldehydes, in this case, Glucose.

The Diamminesilver(I) Complex is made by adding Silver Nitrate to water, and to this add Sodium HYdroxide. This precipitates Silver Oxide. The Silver Oxide is reacted with Ammonia to give the Silver Complex.

Upon heating, in the presence of an Aldehyde, the complex decomposes into elemental Silver, that is deposited on the wall of the test- tube.

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