5 Separate chemistry 1

Practice questions on Separate chemistry 1

• Explain why zinc is often used to protect iron structures, such as oil pipelines, from cor… (4 marks, Explain)
• Stainless steel is an alloy used to make surgical instruments. It contains iron, chromium … (4 marks, Explain)
• Electroplating is used to coat steel cutlery with silver. Explain why electroplating the c… (4 marks, Explain)
• A student carries out a reaction to produce copper sulfate crystals. The theoretical yield… (4 marks, Explain)
• A student reacts magnesium with hydrochloric acid to produce magnesium chloride. The theor… (4 marks, Explain)
• A student is investigating the contact process, used to manufacture sulfuric acid. One ste… (4 marks, Explain)
• A student carries out a reaction to produce calcium carbonate as a precipitate. The theore… (4 marks, Explain)
• A student carries out a reaction to produce silver chloride as a precipitate. The theoreti… (4 marks, Explain)
• The Haber process is used to manufacture ammonia. The reaction is a reversible reaction th… (4 marks, Explain)
• Nitrogen monoxide, NO, is produced as a by-product during combustion reactions in car engi… (4 marks, Explain)
• A chemical cell and a hydrogen-oxygen fuel cell can both be used to produce a voltage. Des… (4 marks, Describe)
• A chemical cell stops producing a voltage after a period of time, whereas a hydrogen-oxyge… (4 marks, Explain)
• A hydrogen-oxygen fuel cell is used to power a forklift truck in a warehouse. Explain why … (4 marks, Explain)
• A chemical cell is made from two different metal electrodes connected by an electrolyte. E… (4 marks, Explain)
• Explain why a hydrogen-oxygen fuel cell is considered more advantageous than a chemical ce… (4 marks, Explain)
• Ethanol can be produced industrially by the reversible reaction of ethene with steam. The … (4 marks, Explain)
• Explain what is meant by dynamic equilibrium and describe what happens to the concentratio… (4 marks, Explain)
• A student carries out a reaction to produce iron oxide. The theoretical yield of iron oxid… (4 marks, Explain)
• Copper is a transition metal that has many uses. Explain why copper is a suitable material… (4 marks, Explain)
• Explain why adding small amounts of other metals to iron to form an alloy can make it more… (4 marks, Explain)