Analytical tests of glycerol - acrolein and dunstan test, Chemistry

Assignment Help:

Analytical tests of glycerol - Acrolein and Dunstan test

(a) Acrolein test: while glycerol is heated with an extremely offensive smell is generated due to formation of acrolein. Its aqueous solvent restores the colour of schiff's reagent and decreases Fehling solution and Tollen's reagent.

(b) Dunstan's test: A drop of phenolphthalein is added almost 5 ml of borax solution. The pink in colour seems on adding 2-3 drops of glycerol, pink colour goes. The pink colour emerges out on heating and disappears on cooling again.


Related Discussions:- Analytical tests of glycerol - acrolein and dunstan test

Dual nature of particles was proposed, Dual nature of particles was propose...

Dual nature of particles was proposed by: (1) Heisenberg (2) Lowry (3) de-Broglie     (4) Schrodinger Ans:de-Broglie

Show the chemical properties of uranium, Q. Show the chemical properties of...

Q. Show the chemical properties of Uranium? Uranium is mainly extracted from pitchblende. The concentrated ore (pitchblende, U 3 O 8 ) is washed and then fused with sodium nitr

What is hyperconjugation, How does it help in stabilising a structure An...

How does it help in stabilising a structure Ans) More alpha hydrogens more hyper conjugations More hyper conjugation more is the stability Less inductive effect more hyper

Define structure of cis-1-3-dimethylcyclohexane, The two chair conformation...

The two chair conformations of cis-1,3-dimethylcyclohexane

In neutral atom, In neutral atom, which particles are equivalent: (1) P...

In neutral atom, which particles are equivalent: (1) P + e +                               (2 ) e - e +                (3) e -, P +                              (

Witt''s theory of colour, what do you mean by the terms chromogen,auxochrom...

what do you mean by the terms chromogen,auxochrome,bathochrome and hyposochrome?what role do they play in relation to colour and constitution?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd