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Grade: 12
        how we will come to know that reacting with tollens reagent it gives positive test
one year ago

Answers : (1)

Arun
22595 Points
							
Tollens' reagent is usually ammoniacal silver nitrate.It is an chemical reagent most commonly used to determine whether a known carbonyl-containing compound is an aldehyde or alpha-hydroxy ketone.A positive test with Tollens' reagent results in elemental silver precipitating out of solution,on the inner surface of the test tube, producing a characteristic "silver mirror”.1).Aldehydes will be positive in Tollens' test and a mirror-like material will be formed.2).If the ketone is an alpha-hydroxy ketone, then the Tollens' reagent will react.3).Tollens' reagent is also a test for alkynes with a triple bond in the 1-position. A yellow precipitate of the metal acetylide is formed in this case.
one year ago
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