Explain fehling''s test, Science

Assignment Help:

In Fehling's Test

The free sugar group (aldehyde or ketone) reduces the Cu  (cupric) ions in  an alkaline environment  to form Cu10 (cuprous oxide) and the sugar is itself oxidized to a carboxylic acid (mixture  of sugar  acids). The  Cu20 is  red  and  precipitates. Carbohydrates that react  in  basic solution with  oxidizing agents are classified as reducing sugars. In basic solution, all monosaccharides whether aldoses or ketoses, are reducing sugars. Simple sugars can act as reducing agents because the aldehyde or ketone group is readily oxidized  to carboxylic  acid.

 


Related Discussions:- Explain fehling''s test

Control of soil erosion, Control of soil erosion: The most significant ...

Control of soil erosion: The most significant measures of erosion control  include (i) growth of grasses, shrubs and trees on soils and (ii) construction of a drainage system w

Applications of optical fibres, Applications of Optical Fibres: Fibre...

Applications of Optical Fibres: Fibre optics finds many applications in areas like medicine and communications which we will briefly describe. We will also discuss  its advht

Soil Science, A soil with a large buffering capacity can be expected to hav...

A soil with a large buffering capacity can be expected to have: A. A tremendous amount of iron oxides B. Little ability to retain basic cations C. A high ability to retain cation

Heterotrophic nutrition, how many types of heterotrophic nutrition in plant...

how many types of heterotrophic nutrition in plants?..

Erosion of a granite, a.  Which type of ripple marks would you expect to se...

a.  Which type of ripple marks would you expect to see on the bed of a river? Why? b.  Which type would you expect to find on the floor of a standing body of water? Why? c.

Define benefits and constraints of multicellular organisms, Define Benefits...

Define Benefits and Constraints of Multicellular Organisms Some of the benefits and constraints of multicellular organisms are as follows: 1) There is a unique co-ordination

Explain undifferentiated cells in an organism, Explain Undifferentiated Cel...

Explain Undifferentiated Cells in an Organism These cells are capable of undergoing division and development, for example, the stem cells (animals) and meristematic cells (plan

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