Paper 1 Practicals 2.0 Flashcards Preview

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Flashcards in Paper 1 Practicals 2.0 Deck (4)
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1
Q

Test for starch

A
  • Iodine solution

- orange solution turns blue black if starch is present

2
Q

How to test for sugars?

A
  • Benedict’s solution
  • heat the solution
  • initially blue , turns brick red if starch is present
3
Q

How to test for lipids?

A
  • ethanol

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

4
Q

How to test for protein?

A
  • biuret

- blue turns purple if protein is present