BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Fehling’s solution is prepared by combining two separate solutions: Fehling’s A, which is a deep blue aqueous solution of copper(II) sulfate, and Fehling’s B, which is a colorless solution of aqueous potassium sodium tartrate (also known as Rochelle salt) made strongly alkali with sodium hydroxide.

Detailed explanation-2: -Initially, the solution exists in the form of two separate solutions which are labelled as Fehling’s A and Fehling’s B. Fehling’s A is a solution containing copper(II) sulphate, which is blue.

Detailed explanation-3: -Fehling A is a blue-colored aqueous solution of copper (II) sulfate (CuSO4).

Detailed explanation-4: -Fehling’s solution is a mixture of alkaline solution of copper(II) sulphate (CuSO4) containing sodium potassium tartrate (Rochelle salt).

Detailed explanation-5: -Reactions Of Fehling’s Test When the redox reaction is completed, the copper II ions are reduced to Copper I oxide, which forms a red precipitate and is insoluble in water. A positive test result is indicated by the presence of this red precipitate.