9 Separate chemistry 2

Practice questions on Separate chemistry 2

• Nitrogen monoxide and oxygen react together to form nitrogen dioxide. The reaction reaches… (4 marks, Explain)
• The Contact process is used to manufacture sulfuric acid. One stage involves the reaction … (4 marks, Explain)
• The Haber process is used to manufacture ammonia. The reaction reaches a dynamic equilibri… (4 marks, Explain)
• Silver nanoparticles are being incorporated into the fabric of some sports clothing to red… (4 marks, Explain)
• Nanoparticles are increasingly being used in sunscreens and in medical drug delivery syste… (4 marks, Describe)
• A geologist finds a mineral sample and dissolves part of it in dilute hydrochloric acid to… (4 marks, Describe)
• A student carries out qualitative analysis on an unknown solution. When a few drops of sod… (4 marks, Describe)
• A water company suspects that a sample of borehole water contains dissolved metal ions and… (4 marks, Describe)
• A student carries out qualitative analysis on two unknown solutions, Solution A and Soluti… (4 marks, Explain)
• A forensic scientist carries out qualitative analysis on a white powder dissolved in water… (4 marks, Explain)
• Explain why nanoparticles of a substance can have different properties compared to a bulk … (4 marks, Explain)
• Gold is a metal that has been used for centuries in jewellery. Scientists have recently de… (4 marks, Explain)
• Titanium dioxide exists as both bulk material and as nanoparticles. Explain why titanium d… (4 marks, Explain)
• Ethanol is manufactured industrially by the hydration of ethene. The reaction takes place … (4 marks, Explain)
• Hydrogen iodide, HI, is formed when hydrogen and iodine react together in a closed contain… (4 marks, Explain)