Question

What is the proportion of Fehling solution A to Fehling solution B in the solution of Fehling’s reagent for conducting Fehling’s test?

(a) 1:1

(b) 1:2

(c) 2:1

(d) 1:3

The question was posed to me in an interview.

My question comes from Aldehydes and Ketones Chemical Reactions topic in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

Answer 1

Correct answer is (a) 1:1

Best explanation: Two solutions, aqueous copper sulphate and alkaline sodium potassium tartarate are combined in equal proportions to result in Fehling’s solution. This is an important reagent in the conduction of Fehling’s test.