How to Make Fehling A & Fehling B Reagent | Fehling A & B Solution | फेह्लिंग सलूशन कैसे बनाते हैं

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FEHLING REAGENT
In this test the presence of aldehydes but not ketones is detected by reduction of the deep blue solution of copper(II) to a red precipitate of insoluble copper oxide. The test is commonly used for reducing sugars but is known to be NOT specific for aldehydes. For example, fructose gives a positive test with Fehling's solution as does acetoin. Fehling's solution is the name given to a chemical reagent, primarily used to differentiate between water-soluble carbohydrate and ketone functional groups. It can also be used as a test for reducing sugars and non-reducing sugars. This reagent is prepared from two solutions, a basic solution of potassium sodium tartrate and a solution of copper(II) sulfate.
Fehling’s test is one of the sensitive test for detection of reducing sugars. Fehling’s reagents comprises of two solution Fehling’s solution A and solution B. Fehling’s solution A is aqueous copper sulphate and Fehling’s solution B is alkaline sodium potassium tartrate ( Rochelle salt). Rochelle salts (sodium potassium tartrate) present in the reagent acts as the chelating agent in this reaction. These two solutions are mixed in equal amount before the test.
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Thank you msm for explain.... How to make fehling A and fehling B reagent...🙏

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Sister great

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How to standardise fehling A& B..

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Mam refusing sugar ka kya MTlb h

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Nice explanation

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As usual all videos on this channel is very informative and knowledgeable.....

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Thank you

[@khalidgullgull4295]

Mam nice explanation. ..but answer me please why we mix Fehling A &B just at the time of experiment....why we cannot keep both these solutions together for long time....

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Very helpful thnku

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Tnx mam
Clears my all doubt on this topic
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Helpful in practical

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