Chemical Tests Flashcards
1
Q
What is the Benedict’s test used for?
A
-reducing + non - reducing sugars
2
Q
Method of the Benedict’s test
A
-blue copper sulphate is added to sugar
-heated
-if present = red is formed
-if not present = doesn’t change colour
3
Q
What is the biuret test for?
A
-proteins
4
Q
Method of the buriet test
A
-equal amount of NaOH is added
-add dilute copper sulfate solution
-gently mixed
-present = lilac
-not present = blue
5
Q
What is the emulsion test used for?
A
-lipids
-ethanol is added
-shake
-present = cloudy
6
Q
What is the iodine test for?
A
-starch
-if present = yellow to blue/black
