Alcohols Quiz
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5 questions, one answer each
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1. What is the general formula of an alcohol?
- A. CnH2n
- B. CnH2n+2
- C. CnH2n+1OH
- D. CnH2n+1COOH
2. Under what conditions does fermentation of glucose to ethanol take place?
- A. High temperature, high pressure, acid catalyst
- B. 25-35 degrees C, yeast, absence of oxygen
- C. 0 degrees C, in the presence of oxygen
- D. 300 degrees C, nickel catalyst
3. Which raw material is used for the catalytic addition method of making ethanol?
- A. Glucose
- B. Ethene
- C. Ethanoic acid
- D. Methane
4. What is a key disadvantage of manufacturing ethanol by fermentation compared with catalytic addition?
- A. It uses a non-renewable raw material
- B. It is slower and produces a dilute, less pure product
- C. It requires very high pressure
- D. It cannot be used to make fuel
5. A company must choose a method to produce large quantities of pure ethanol quickly for industrial solvent use, but is not concerned about using a non-renewable raw material. Which method should they choose and why?
- A. Fermentation, because it is renewable and therefore always preferred
- B. Catalytic addition of steam to ethene, because it is a fast, continuous process producing a pure, concentrated product directly
- C. Fermentation, because it requires no catalyst at all
- D. Catalytic addition, because it uses glucose as a renewable feedstock