Question

Explain Fehling test.​

Answer 1

Answer:

Explanation:

Fehling’s Solution

Fehling’s test consists of a solution that is usually prepared fresh in laboratories. 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. Fehling’s B is a clear liquid consisting of potassium sodium tartrate (Rochelle salt) and a strong alkali, usually sodium hydroxide. During the test solutions A and B are prepared individually and stored.

The two solutions are later mixed in equal volumes to get the final Fehling solution which is deep blue. The deep blue ingredient is the bis(tartrate) complex of Cu2+. The tartrate tetra-anions serve as a chelating agent in the solution.

Answer 2

Answer:

Fehling’s Solution

Fehling’s test consists of a solution that is usually prepared fresh in laboratories. 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. Fehling’s B is a clear liquid consisting of potassium sodium tartrate (Rochelle salt) and a strong alkali, usually sodium hydroxide. During the test solutions A and B are prepared individually and stored.

Explanation:

PLS MARK ME AS BRAINLIST.