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Why does benzaldehyde give positive Tollen's test but negative Fehling's and Benedict test? Thanks?

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  • Why does benzaldehyde give positive Tollen's test but negative Fehling's and Benedict test? Thanks?


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Why does benzaldehyde give positive Tollen's test but negative Fehling's and Benedict test? Thanks? ... test with tollens reagent ... why does then ...
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Positive: 88 %
Tests for Aldehydes and Ketones. ... Add one drop or a few crystals of unknown to 1 mL of the freshly prepared Tollens ... also give a positive test, ...
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Positive: 85 %

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Tertiary alcohols give no visible reaction within 2 seconds, the solution remaining orange in color. Disregard ... Enols may give a positive test.
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Positive: 88 %
... with an aromatic aldehyde but why doesn't it ... sugars give a positive test ... do a Fehling's test on the weak benzaldehyde almond ...
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Positive: 83 %
Tollens Test For Alcohol ... Does Tollens' or Fehling's or Benedict's solution test work on al ... positive DNP, and negative Tollens' tests? c) ...
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Positive: 69 %
Identification of an Unknown – Alcohols, Aldehydes, and Ketones ... Identification will be accomplished by carrying out chemical tests, ... Why is it ...
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Positive: 46 %

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