Welcome to Chem Zipper.com......: What is Tollen's reagent?

Search This Blog

Tuesday, January 28, 2020

What is Tollen's reagent?

Tollen's reagent is a mixture of liquid ammonia and silver nitrate , It was named after its discoverer, the German chemist Berhard Tollens. 

Basically positive test means Tollens' reagent oxidize, aldehyde aromatic aldehyde and alpha-hydroxy ketone functional groups into corresponding acid and  the precipitation of elemental silver, often producing a characteristic "silver mirror" on the inner surface of the reaction vessel.

                                        AgNO3 + NH4OH --> NH4NO3 +AgOH
Related Questions:

Both glucose and fructose are reducing sugars but sucrose is non-reducing in nature. Why?
Fructose contains a keto group, yet it reduces Fehling solution and Tollen's reagent. Why ?
What is Dunstan's test , How can it use for test Glycerol ?
What is luca's reagent and where is luca's reagent uses ?
What is Victory-Meyer's test and how can distinction between 1°, 2° and 3° alcohols by this ?
Benzaldehyde gives a positive test with Tollen's reagent but not with Benedict's and Fehling's solution. Comment why?
Aromatic amines are lesser basic than aliphatic amines.why ?
Which are the compounds gives positive Tollen's test?
What is Tollen's reagent?
What is Carbylamine test or Isocyanide test ?
What is Hinsberg's reagent and where Hinsberg's test use?
N-Ethyl-N-methyl propanamine does not show optical activity why?

No comments:

Post a Comment