1
Q
What is used to test for starch?
A
Iodine
2
Q
What is used to test for sugar?
A
Benedicts solution
3
Q
What is used to test for protein?
A
Biuret solution
4
Q
What is used to test for lipids?
A
Ethanol
5
Q
What colour appears when starch is present?
A
Blue-black
6
Q
What colour appears when a reducing sugar is present?
A
Green, yellow or brick-red
Depends on sugar concentration
7
Q
What colour appears when protein is present?
A
Purple
8
Q
What will appear when a lipid is present?
A
A cloudy-white (milky) emulsion which floats in the upper layers of the water
