R1.3 Energy from fuels Quiz
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5 questions, one answer each
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1. What is the coefficient of O₂ in the balanced equation for complete combustion of propane, C₃H₈?
- A. 3
- B. 4
- C. 5
- D. 7
2. Which is a product of the combustion of magnesium in oxygen?
- A. MgO
- B. MgO₂
- C. Mg(OH)₂
- D. MgCO₃
3. Which fuel is renewable?
- A. Coal
- B. Natural gas
- C. Biodiesel
- D. Petrol
4. At which electrode is the fuel oxidised in a fuel cell?
- A. Anode
- B. Cathode
- C. Both electrodes
- D. Neither electrode
5. Which gas is produced by incomplete but not by complete combustion of methane?
- A. Carbon dioxide
- B. Carbon monoxide
- C. Water vapour
- D. Oxygen