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Sample Items For A Level Chemistry Papers Senior Five

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Wambedeiv [email protected] pg. 1 SAMPLE ITEMS FOR A ‘LEVEL CHEMISTRY SECTION A Item 1: Water Purification You are a chemist working for a water treatment plant in Kampala. The plant uses a combination of coagulation, sedimentation, filtration, and disinfection to purify water from Lake Victoria. However, recent tests have shown that the water contains high lev els of nitrates and phosphates, which can cause harm to humans and the environment. I. Identify the chemical reactions involved in the purification process. Wambedeiv [email protected] pg. 2 II. Explain the effects of nitrates and phosphates on human health and the environment. III. Suggest methods to remove nitrates and phosphates from the water. Item 2: Energy Production You are a chemist working for a power generation company in Uganda. The company uses a combination of fossil fuels (coal, oil, and gas) and renewable energy sources (hydro, solar, and wind) to generate electricity. However, the company wants to explore new energy sources to reduce its reliance on fossil fuels. Wambedeiv [email protected] pg. 3 1) Explain the chemical reactions involved in the combustion of fossil fuels. 2) Discuss the advantages and disadvantages of different renewable energy sources. 3) Suggest new energy sources that the company could explore. Item 3: Environmental Monitoring You are a chemist working for the National Environment Management Authority (NEMA) in Uganda. NEMA is responsible for monitoring and managing the environment in Uganda. However, recent tests have shown that the air and water in Kampala are polluted with hi gh levels of particulate matter, nitrogen dioxide, and sulfur dioxide. Wambedeiv [email protected] pg. 4 1) Explain the chemical reactions involved in air and water pollution. 2) Discuss the effects of air and water pollution on human health and the environment. 3) Suggest methods to reduce air and water pollution in Kampala. Item 4: Pharmaceutical …
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Sample Items For A Level Chemistry Papers Senior Five, is an educational document on StudyUganda.com. This resource includes: "Wambedeiv [email protected] pg. 1 SAMPLE ITEMS FOR A ‘LEVEL CHEMISTRY SECTION A Item 1: Water Purification You are a chemist working for a water treatment ……" (Format: PDF) — 217.92 KB, 11 pages. Added July 23, 2026.

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