4.7 Organic chemistry

Practice questions on Organic chemistry

• Propene can be produced by cracking. Explain why propene decolourises bromine water but pr… (4 marks, Explain)
• Describe the differences between catalytic cracking and steam cracking. (4 marks, Describe)
• Ethanol can be manufactured by the fermentation of sugar solutions using yeast. Describe w… (4 marks, Describe and Explain)
• Ethanol can be oxidised to produce ethanoic acid. Describe two chemical properties of etha… (4 marks, Describe)
• Describe the process of addition polymerisation, including the type of monomer required an… (4 marks, Describe)
• Compare addition polymerisation and condensation polymerisation. Include in your answer th… (4 marks, Compare)
• Explain why nylon and DNA are both described as polymers. Include in your answer the role … (4 marks, Explain)
• Explain why DNA and proteins are described as naturally occurring polymers. Include in you… (4 marks, Explain)
• Explain how condensation polymerisation produces a polyester, including the type of monome… (4 marks, Explain)
• Ethene can be converted into ethanol by two different methods: hydration with steam, and f… (4 marks, Compare)
• Ethene reacts with bromine water. Describe what is observed and explain why ethene reacts … (4 marks, Describe and Explain)
• Explain why alkenes are produced during cracking and describe how you could distinguish an… (4 marks, Explain)
• Explain why heavy fuel oil fractions from crude oil are less useful as fuels than petrol f… (4 marks, Explain)
• Describe how fractional distillation is used to separate crude oil into fractions, and exp… (4 marks, Describe and Explain)
• Explain why cracking is an important industrial process. (4 marks, Explain)