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Yes Bayers reagent is Alkaline and it gives syn addition of two -OH groups across the double bond
but if acidified KMnO4 is taken then that will cleave the double bond and give a mixture of acids
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Which sugar gives a negative reaction to Benedict reagent?
Benedict's reagent is a type of chemical that is used to test if reducing sugars are present or not. The chem'ical is named after Stanley Rossiter Benedict.
How do you prepare toluene reagent from benzen?
treat benzene with CO/CuCl/AlCl3/HCl to make a benzaldehyde (i.e. add CHO on benzene ring), then Zn(Hg)/HCl to make toluene
How does the hinsberg test distinguish primary secondary and tertiary amines?
*hinsberg reagent -Benzene sulphonyl chloride( C6H5SO2Cl) with primary amine gives n-ethylbenzenesulfonamide which is soluble in alkali *hinsberg reagent with 2 amine forms n,n-diethyl benzene sulphonamide which is insoluble in alkali *3 amine do not show this rxn
Why fructose gives positive tollen reagent test?
Only aldehydes give a positive Tollens test. However, under the strongly basic conditions of the test, alpha-hydroxy ketones can isomerize to aldehydes, so they will also give a positive Tollens test. Fructose is an alpha-hydroxy ketone.
Which substance will give a red precipitate when heated with Fehling solution?
Cu2O gives red ppt when heated with fehlings soln
Is Pararosaniline is schiff's reagent?
No, its reaction with SO2(aq) gives schiff's reagent.
When does a spray of diphenylamine reagent on TLC gives blue coloration?
Diphenylamine is a reagent for DNA.
What is the difference between Benedict's Reagent and Biuret Reagent?
Benedicts reagent is used to check reducing sugars , it need hat to work and gives red color when positive ,. While biuret reagent is for proteins .there is no need to use heat and gives purple , violet color when positive ..
Is fructose gives positive test with tollens reagent?
no negative
Why ether is used instead of water in Grignards reagent?
it is used because it gives power
A reducing sugar gives a precipitate of silver metal with Benedict's reagent.?
This is probable an error.
Which sugar gives a negative reaction to Benedict reagent?
Benedict's reagent is a type of chemical that is used to test if reducing sugars are present or not. The chem'ical is named after Stanley Rossiter Benedict.
Nitrate in urine?
These nitrates are the products of vital activity of microorganisms such as Escherichia coli, Proteus, Citrus bacteria, Salmonella, and probably, enterococci, staphylococci and Pseudomonas. Reagent Strips zone contains a modified and stabilized reagent Hiss, who, in the presence of nitrite gives the pink azote dye.
How do you prepare toluene reagent from benzen?
treat benzene with CO/CuCl/AlCl3/HCl to make a benzaldehyde (i.e. add CHO on benzene ring), then Zn(Hg)/HCl to make toluene
Why grignard reagent always kept in dry ether?
During the formation of Grignard's reagent dry or anhydrous ether is used to prevent the magnesium from moisture because in presence of water magnesium leaves the organic material and combines with water.
How does the hinsberg test distinguish primary secondary and tertiary amines?
*hinsberg reagent -Benzene sulphonyl chloride( C6H5SO2Cl) with primary amine gives n-ethylbenzenesulfonamide which is soluble in alkali *hinsberg reagent with 2 amine forms n,n-diethyl benzene sulphonamide which is insoluble in alkali *3 amine do not show this rxn
What happened to phenol with Iron III chloride reagent?
"Addition of aqueous iron III chloride to a phenol gives a colored solution. Depending on the structure of the phenol, the color can vary from green to purple.
