whhat is the chemical composition of fehling's reagent?
- 5 Answers
- 137481 Views
- RAA, I also Faced
- E-Mail Answers
Answer Posted / debjit dutta
The composition of fehling's reagent are :
copper sulphate-CuSO4 [fehling A], sodium or potassium
hydroxide-NAOH or KOH and Potassium sodium tartarate {KNa
(C4H4O6).4H2O} [fehling B], also called Rochelle salt.
Here in the fehling test, the copper from CUSO4 in the
reactant is reduced from +II state to +I state by the
aldehyde, and that aldehyde is oxidised to its
corresponding carboxylic acid.
The copper in the product is changed to CU2O which is red
ppt. in nature, giving positive fehling test. But ketones
are resistant to fehling test.
| Is This Answer Correct ? | 73 Yes | 24 No |
Post New Answer View All Answers
How are free energy changes related to enthalpy changes and entropy changes?
Name the instrument used for sequencing proteins automatically?
What is the formula of hypo in oxidation state of sulphur?
Explain the Use of ammonal?
What are the chemical bonds of the dna molecule that are broken for the replication process to occur?
Which type of reactions did acetylene undergoes?
What are some factors that can lead to protein denaturizing?
Which are the nucleotides “portions” that bind in the formation of nucleic acids?
What is inert pair effect?
What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose?
What is the lattice energy of nacl?
Aldehydes (ch3cho) and vinyl alcohol (ch2=choh) are?
What is threshold energy?
Explain how the production of rna called?
How are free energy changes related to LeChatelier's Principle?
