General test of carbohydrates

Biological test :
GENERAL TEST OF CARBOHYDRATES:
There are many test for identifying whether solution containing carbohydrates,lipids or protein.
Here we explain general test of carbohydrates
1)Foulger test:
presence of ketonic groups in sugar.
Apparatus:
test tube,test tube holder,glass pipette
CHEMICAL:
folger solution reagent,different
sugars
PROCEDURE:
take 3ml of foulger's reagent in a clear and dry test tube.
Add 0.5 ml of sugar soon.
mix and biol for one minute.
RESULTS:
blue color appears in the presence of ketohexoses.