Paper 1 Practicals 2.0

Question 1

Test for starch

Answer 1

• Iodine solution

- orange solution turns blue black if starch is present

Question 2

How to test for sugars?

Answer 2

• Benedict’s solution
• heat the solution
• initially blue , turns brick red if starch is present

Question 3

How to test for lipids?

Answer 3

• ethanol

- gives cloudy layer if lipid is present , ethanol is highly flammable and harmful

Question 4

How to test for protein?

Answer 4

• biuret

- blue turns purple if protein is present