Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Organic Chemistry
785 practice questions
Topics covered
Practice questions
251–260 of 785
Question 251
2 marks · Normal
Answer and see the solution →State two typical uses of refinery gases.
Question 252
4 marks · Normal
Answer and see the solution →Gasoline (petrol) is an important fraction produced from crude oil.
(a)[1 mark]State what gasoline (petrol) mainly consists of.
(b)[2 marks]Give two different uses of gasoline.
(c)[1 mark]Explain why gasoline is suitable for its main use in vehicles.
Question 253
3 marks · Normal
Answer and see the solution →Most cars use gasoline (petrol) as a fuel.
Explain why gasoline, rather than refinery gases, is usually chosen as the preferred fuel for cars.
Question 254
3 marks · Normal
Answer and see the solution →A household gas tank contains 18 kg of liquefied petroleum gas (LPG), which is a typical use of refinery gases. LPG is mainly a mixture of propane () and butane ().
If the average molar mass of LPG is assumed to be , calculate how many moles of LPG the tank contains. State one typical domestic use of LPG in your answer.
Question 255
4 marks · Normal
Answer and see the solution →The table shows data about the use of refinery gases in different countries.
Country Percentage of refinery gases used for domestic heating (%) Percentage used for cooking (%) Country X 55 30 Country Y 70 20 Country Z 40 50 (a)[1 mark]Which country uses the greatest percentage of refinery gases for cooking?
(b)[1 mark]Calculate the combined total percentage of refinery gases used for domestic heating and cooking in Country Y.
(c)[2 marks]Suggest one reason why the percentages used for heating and cooking might differ between countries.
Question 256
2 marks · Normal
Answer and see the solution →Refinery gases are produced during the fractional distillation of crude oil. State two typical uses of refinery gases.
Question 257
4 marks · Normal
Answer and see the solution →(a)[1 mark]State the main use of gasoline (petrol).
(b)[2 marks]Describe how gasoline is used in this application.
(c)[1 mark]Give one reason why gasoline is suitable for this use.
Question 258
3 marks · Normal
Answer and see the solution →Explain why gasoline (petrol) is a suitable fuel for use in motor vehicles.
Question 259
2 marks · Hard
Answer and see the solution →Refinery gases are separated out from crude oil in oil refineries. State one typical use of refinery gases for industry and one for the home.
Question 260
5 marks · Hard
Answer and see the solution →Gasoline (petrol) is an important product of crude oil refining.
(a)[1 mark]State the main use of gasoline.
(b)[2 marks]Explain why gasoline is suitable for its main application. Give two reasons.
(c)[2 marks]Another fraction from crude oil is kerosene. Compare the main use of kerosene with that of gasoline.