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

What is the structure of the urinary bladder, What is the structure of the ...

What is the structure of the urinary bladder? The bladder is composed of four layers of tissues. The outermost serous membrane is a thin membrane lining the closed cavities of

Minerals and vltamins, Minerals and vltamins Minerals and vltamins ...

Minerals and vltamins Minerals and vltamins are not a source of energy but they are necessary in many of the steps involved in the release of energy in  the cells. Thus,  t

Explain the special examination of urine, Explain the Special Examination o...

Explain the Special Examination of Urine The special examination requires the determination of various chemical substances in the urine including amino acids, bile pigments and

Driving a boat by surface tension, Driving a boat by surface tension Se...

Driving a boat by surface tension Secure some gum camphor at the drug shop. Cut two or three boats from stiff paper, every about 2.5 cm in length. Cut a notch in the stern larg

Major coenzyme derivatives of riboflavin, Riboflavin Riboflavin   has...

Riboflavin Riboflavin   has  two  major coenzyme  derivatives,  namely in  mononucleotide (FM)  which  is the active component of riboflavin and is formed by the addition of a

Estimate the moisture content and density, 1. The composition of solid wast...

1. The composition of solid waste from a residential community is as follows: Component Percent by weight Combustibles ---

Medicare operates as vendor payment program, Question 1 Which are the d...

Question 1 Which are the different types of health insurance plans? Explain 2 Define the following terms used in E/M services        a) New and established patient        b) Na

Moving water by reducing air pressure, Moving water by reducing air pressur...

Moving water by reducing air pressure Secure two small bottles. Fill single about half full of water and close it with a single-hole stopper carrying a length of glass tube tha

Determine about the moisture content of soil, Moisture Content of Soil ...

Moisture Content of Soil As mentioned above the degree of moisture pertains to relative concentration (rather than the absolute amount) of water, independent of the size of sam

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