1. Why is carbon dioxide, CO₂ harmful to the environment?

Question 1 of 22

2. What is crude oil?

Question 2 of 22

3. Explain the term homologous series

Question 3 of 22

4.

A student has been asked to draw all the alkene isomers of C₄H₁₀ and draws the following. Which of the following statements about the student's diagram is correct?

Question 4 of 22

5. Recall a use of refinery gases

Question 5 of 22

6. Why can nitrogen react with oxygen in a car engine?

Question 6 of 22

7. Explain why carbon monoxide is dangerous to humans

Question 7 of 22

8. State the general formula of alkanes

Question 8 of 22

9. Name this molecule

Question 9 of 22

10. What is a substance called if it, when burned, releases heat energy?

Question 10 of 22

11. Write a chemical equation for the complete combustion of propane

Question 11 of 22

12. Write the chemical equation for sulfur dioxide dissolving in water to form acid rain

Question 12 of 22

13. Explain why nitrogen gas, N₂, is a gas at room temperature

Question 13 of 22

14. A pupil has tried to write down various ways of representing ethane using: molecular formula, displayed formula, general formula, empirical formula and stuctural formula. However she has missed one out. Which one?

Question 14 of 22

15. Explain the term hydrocarbon

Question 15 of 22

16. What is the name of the process in which crude oil is separated into its various components?

Question 16 of 22

17. Why is the boiling point of a larger molecule higher than that of a smaller molecule?

Question 17 of 22

18. How does sulfur dioxide form in car engines?

Question 18 of 22

19. What does volatile mean? Which fraction of crude oil is the most volatile?

Question 19 of 22

20. Why are alkanes classified as saturated hydrocarbons?

Question 20 of 22

21. What is the molecular formula for propane?

Question 21 of 22

22. What do each of the following state symbols represent: (s), (l), (g), (aq)

Question 22 of 22


 

Related Posts: