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2. Osazone - Wikipedia

   en.wikipedia.org/wiki/Osazone

   Osazone formation was developed by Emil Fischer, [3] who used the reaction as a test to identify monosaccharides. The formation of a pair of hydrazone functionalities involves both oxidation and condensation reactions. [4] Since the reaction requires a free carbonyl group, only "reducing sugars" participate.

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   en.wikipedia.org/wiki/List_of_reagent_testing...

   Reagent testers might show the colour of the desired substance while not showing a different colour for a more dangerous additive. [2] For this reason it is essential to use multiple different tests to show all adulterants.

4. Hydrazone - Wikipedia

   en.wikipedia.org/wiki/Hydrazone

   Structure of the hydrazone functional group. Hydrazones are a class of organic compounds with the structure R 1 R 2 C=N−NH 2. [1] They are related to ketones and aldehydes by the replacement of the oxygen =O with the = N−NH 2 functional group.

5. Qualitative inorganic analysis - Wikipedia

   en.wikipedia.org/wiki/Qualitative_inorganic_analysis

   According to their properties, cations are usually classified into six groups. [1] Each group has a common reagent which can be used to separate them from the solution.To obtain meaningful results, the separation must be done in the sequence specified below, as some ions of an earlier group may also react with the reagent of a later group, causing ambiguity as to which ions are present.

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7. Quizlet - Wikipedia

   en.wikipedia.org/wiki/Quizlet

   Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.

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