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07-03-2024
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4.2 Refer to the diagram above and outline the procedure to be followed in the investigation. 5. QUESTIONS BASED ON RESULTS AND OBSERVATIONS: [MARKS: 4] 5.1 Why do you need to boil the plant leaf in water? 5.2. Describe what happens when the leaf is boiled in the ethanol. 5.3. Explain why it is needed to wash the leaf with water after it has been removed from the ethanol. (4) (1) (1) 5.4. When iodine solution is added to the leaf a colour change is observed. Describe the colour change. (1) o. CONCLU ter coll

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