Silver mirror test

Silver mirror test

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Caption: Silver mirror test. Tollen's reagent reacted with an aldehyde produces a silver mirror (right). This is a diagnostic test used to distinguish between aldehydes (organic compounds with a -CO.H group) and closely related ketones (-CO.C). The Tollen's reagent (ammoniacal silver oxide) and ethanal (or acetaldehyde, CH3CHO) are reacted in a test tube (left). The ethanal reduces the complex silver ions to metallic silver, which deposit on the inside of the reaction vessel (right).

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Keywords: acetaldehyde, aldehyde, analysis, ch3cho, chemical, chemicals, chemistry, diagnostic, ethanal, experiment, reaction, school, silver, silver mirror test, testing, tollen's reagent

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