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Will hydrolysed dextrine give positive response to Benedict test?
Yes, it should. Benedicts test will be positive for reducing sugars, and since glucose is such a sugar, and would be a product of dextrin hydrolysis, you should get a positive result with Benedicts reagent.
Which is more sensitive test fehlings test or Benedicts test?
Benedict's test is more sensitive than Fehling's test for detecting reducing sugars in a sample. Benedict's reagent has a lower detection threshold and is known to give more accurate results compared to Fehling's reagent.
What are the Benedicts test results for glucose?
Benedict's test is a simple chemical test used to detect the presence of reducing sugars like glucose in a solution. The test result is positive if a brick-red precipitate forms, indicating the presence of reducing sugars. If the solution remains blue, it indicates a negative result.
Why does fructose give a positive Benedicts test?
Benedict's test detects the presense of the aldehyde group. Fructose is a ketose rather than an aldose, but it's converted to glucose or mannose (both of which are aldoses) by the base in Benedict's reagent. All monosaccharides give a positive Benedict's test because they're all either aldoses or alpha-hydroxy ketoses that get transformed into aldoses. Sucrose does not, because while it contains fructose and glucose, both of which do test postive, the saccharides in sucrose are "locked" into hemiacetal form and cannot undergo ring opening to expose an aldehyde group. (It's a very weak lock; dilute acid ... like, say, lemon juice ... will hydrolyse the saccharide linkage and allow the hemiacetal rings to open.)
How can you make a pregnancy test come out positive?
Attempting to manipulate a pregnancy test to produce a false positive result is dishonest and can have serious consequences. It is important to use a pregnancy test as directed and to seek medical guidance for accurate results.
Will l-fucose produce positive in the Benedicts test?
L-fucose will not produce a positive result in the Benedict's test. The Benedict's test is designed to detect reducing sugars, and while L-fucose is a sugar, it does not have the necessary functional groups to act as a reducing agent. Therefore, it will not react with the copper ions in the Benedict's reagent to form a colored precipitate.
Do eggs test positive in benedicts test?
Yes, eggs can test positive in the Benedict's test because they contain glucose, which is a reducing sugar that reacts with the reagent in the test to form a colored precipitate.
Would sucrose test positive or negative with benedicts reagent?
No, surcose is a disaccharide without a hemiacetal group
Would glucose solution produce a positive Benedicts test?
No, Benedicts reagent will show positive results if the carbohydrate is a reducing sugar. You will know if it is positive if the sample will turn from blue to green then to orange when you are cooling the solution, which is the last step when you are performing the benedicts test for carbohydrates.
Will hydrolysed dextrine give positive response to Benedict test?
Yes, it should. Benedicts test will be positive for reducing sugars, and since glucose is such a sugar, and would be a product of dextrin hydrolysis, you should get a positive result with Benedicts reagent.
What is the mannose test?
The mannose test, also known as the mannose loading test, is a diagnostic procedure used to assess the body's ability to metabolize mannose, a type of sugar. It is primarily utilized in the context of investigating certain metabolic disorders or conditions related to carbohydrate metabolism, such as congenital disorders of glycosylation. During the test, a specific amount of mannose is administered, and subsequent blood or urine samples are analyzed to measure the levels of mannose and its metabolites. Abnormal results may indicate issues with mannose metabolism or related enzymatic functions.
Which indicator would most likely yield a positive test by way of a color change in the water-cookie solution?
Benedicts solution
What does the Benedict's test measure?
Benedicts solution comprises of solution A(copper sulphate) and solution B(sodium pottasium citrate).chemically it is used as a test for aldehydes or generally carbonyl group.It is used to measure the sugar(allose,glucose,mannose,gullose,indose,galactose,tallose)content in food.-santa
What are the Benedicts test results for Gatorade?
penis
What is the test for sugar using Benedicts solution?
prosrdure of benidect solution test
What substrate gives a positive reaction for benedicts reagent?
Reduction of Benedict's reagent occurs with reducing sugars such as glucose, fructose, and galactose, giving a positive test result. This test is used to detect the presence of reducing sugars in various food products.
What is the stain solution when chemical is test for sugar?
It is normally benedicts solution. Add about 1/4 of the total sugar solution to a test tube and heat it in a hot water bath at around 50 degrees C for 5 min. For example, heat 40mL of sugar water (C12H22O11 aq ) with 10mL of Benedicts soluton (copper and sodium salts). If it is a positive test it will turn yellow.
