Question icon
Grade 12Organic Chemistry

What is benedict solution in carboyl compounds chapter and tell it's formula & test?

Profile image of Ansh Katiyar
7 Years agoGrade 12
Answers icon

1 Answer

Profile image of Arun
7 Years ago

Benedict's solution contains copper(II) ions complexed with citrate ions in sodium carbonate solution. Complexing the copper(II) ions prevents the formation of a precipitate - this time of copper(II) carbonate.

Both solutions are used in the same way. A few drops of the aldehyde or ketone are added to the reagent, and the mixture is warmed gently in a hot water bath for a few minutes.

ketone No change in the blue solution.
aldehyde The blue solution produces a dark red precipitate of copper(I) oxide.