0
What else can I help you with?
What is the Chemical equation for Benedict's test?
R-CHO + 2Cu2+ + 4OH- ----------> R-COOH + Cu2O + 2H2O where R is the group attached to the aldehyde (CHO)
What test is used to show the reducing property of an aldehyde and a ketone?
The Tollens' test is commonly used to show the reducing property of an aldehyde. In this test, an aldehyde will reduce silver ions in Tollens' reagent to form a silver mirror. Ketones do not show this reaction.
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 substances give a positive tollens test?
When adding the aldehyde or ketone to Tollens' reagent, the test tube is put in a warm water bath. If the reactant under test is an aldehyde, Tollens' test results in a silver mirror. If the reactant is a ketone, it will not react because a ketone cannot be oxidized easily. A ketone has no available hydrogen atom on the carbonyl carbon that can be oxidized - unlike an aldehyde, which has this hydrogen atom.
Is vanillin positive in DNPH test?
No, vanillin is not positive in the DNPH (2,4-dinitrophenylhydrazine) test. The DNPH test is used to detect the presence of carbonyl (aldehyde or ketone) functional groups in compounds and vanillin does not contain a carbonyl group.
What is the Chemical equation for Benedict's test?
R-CHO + 2Cu2+ + 4OH- ----------> R-COOH + Cu2O + 2H2O where R is the group attached to the aldehyde (CHO)
What compound can be oxidized by both Benedicts solution and Tollens reagent?
A reducing sugar such as glucose can be oxidized by both Benedicts solution and Tollens reagent to form a colored precipitate. This reaction is used to test for the presence of reducing sugars in a solution.
Who sells Benedect test solution?
Most chemical supply companies sell it. You can do an internet search for "retail sale of Benedicts solution".
What is the equation for the reaction of modified furter-meyer test?
The reaction for the modified Fehling's test involves the oxidation of an aldehyde to a carboxylic acid in the presence of copper(II) ions. This reaction results in the formation of a brick-red precipitate of copper(I) oxide, which indicates a positive test for the presence of an aldehyde group.
What are the Benedicts test results for Gatorade?
penis
What is the test for sugar using Benedicts solution?
prosrdure of benidect solution test
What test is used to show the reducing property of an aldehyde and a ketone?
The Tollens' test is commonly used to show the reducing property of an aldehyde. In this test, an aldehyde will reduce silver ions in Tollens' reagent to form a silver mirror. Ketones do not show this reaction.
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.
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 is the chemical basis of the iodine and Molisch's test?
The iodine test: the ion I3(-) react with starch forming a blue color.Molisch test: dehydrated saccharides (with sulfuric acid) form an aldehyde whic react with a phenol an a red color is obtained.
Why should you add 8 drops of urine in the Benedict test?
why should you add 8 drops of urine in the Benedicts test
What does a negative Benedicts test indicate?
A negative Benedict's test would indicate that there isn't any presence of reducing sugars in that particular substance.
