ACSBR Fuels & Crude Oil - Assignment

Anglo-Chinese School (Barker Road) A Methodist Institution Founded in 1886 CHEMISTRY DEPARTMENT OF SCIENCE Name: ( ) Class: SEC 4 FUELS AND CRUDE OIL – ASSIGNMENT LIM POH FANG & ALEX LEE/2010 PAGE 1 OF 5 PURE/COMBINED/N-LEVEL Multiple-Choice Questions [20 Marks] TOTAL SCORE / 30 Write in your selected answer for the multiple-choice questions in the boxes provided. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1. Which of the following property is necessary for methane to be used as a fuel? A It burns exothermically. C It has a low boiling point. B It can be easily transported. D It is gaseous at room temperature. 2. Which of the following is the least important factor in choosing a suitable fuel? A availability of the fuel C physical state of the fuel B energy evolved per mole of fuel D products of combustion 3. Which of the following statements about hydrogen fuel is true? A It does not produce any harmful products. B It is a cheaper alternative to petrol. C It is burnt with oxygen in a hydrogen fuel cell. D It is obtained from fractional distillation of air. 4. Which of the following statements describing petrol and diesel are true? A Petrol has a higher boiling point than diesel. B Petrol is less expensive than diesel. C Petrol is more flammable than diesel. D Petrol produces more pollutants than diesel. 5. Ethanol, an alternative fuel for cars, is advantageous because A it does not contribute to global warming. B it does not produce any carbon dioxide on combustion. C it helps increase the availability of food through crop growing. D it increases the availability of land from oil rigs for other use.

LIM POH FANG & ALEX LEE/2010 PAGE 2 OF 5 6. Ethanol fuel is produced by photosynthesis, followed by fermentation. Which of the following is not an accurate difference between the two processes? A Photosynthesis is endothermic while fermentation is exothermic. B Photosynthesis forms an aqueous product while fermentation forms a liquid product. C Photosynthesis requires chlorophyll while fermentation requires yeast. D Photosynthesis requires light to occur while fermentation requires absence of light. 7. Which of the following statements describing gaseous fuels is false? A Gaseous fuels are generally more flammable and hence easier to combust. B Gaseous fuels are more difficult to store as they require compression or liquification. C Gaseous fuels generally produce less harmful products when combusted. D Gaseous fuels have a lower energy-to-mass ratio than solid fuels. 8. Which of the following statements describing fossil fuels are true? (i) All fossil fuels contain carbon in its structure. (ii) All fossil fuels are renewable sources of energy. (iii) All fossil fuels are liquid at room temperature and pressure. (iv) All fossil fuels are formed from the remains of ancient plants and animals.