What is the principle of Benedictís test?

1 Answer

Answer :

In alkaline medium, sugar will cause reduction of cupric ions, to form red coloured precipitate.

Related questions

Description : Benedictís test is commonly employed for what?

Last Answer : To detect the presence of glucose in urine.

Description : Keto group is non-reducing, but fructose reduces Benedictís solution, what is the cause for this anomaly? 

Last Answer : In alkaline medium, ketone group is converted to aldehyde, through enediol formation.

Description : What is the composition of Benedictís reagent.

Last Answer : It contains sodium carbonate, copper sulfate and sodium citrate. In the alkaline medium provided by sodium carbonate, the copper remains as cupric hydroxide. Sodium citrate acts as a stabilising agent to prevent precipitation of cupric hydroxide.