Year 11 Unit test

1. What is the atomic number of carbon?

2. Which of the following is a noble gas?

3. What is the pH of a neutral solution at 25°C?

4. What type of bond is formed between sodium and chlorine in sodium chloride?

5. Which of the following is not a chemical change?

6. What is the main component of natural gas?

7. Which of the following elements is diatomic in its natural state?

8. What is the formula for calculating the number of moles?

9. What happens to the rate of a chemical reaction when the temperature increases?

10. Which type of reaction involves the formation of a gas?

11. What is the law of conservation of mass?

12. Which of the following is an example of an exothermic reaction?

13. What is the main purpose of a catalyst in a chemical reaction?

14. What is the primary factor that affects solubility of a solid in a liquid?

15. Which of the following is a strong acid?

16. What is the chemical formula for water?

17. Which of the following is a property of metals?

18. What is the pH level of pure water?

19. What type of bond is formed when electrons are shared between atoms?

20. What is the main gas produced during respiration?

21. Which of the following is an example of a physical change?

22. What is the atomic number of carbon?

23. Which of the following best describes an exothermic reaction?

24. What is the process of a solid turning directly into a gas called?

25. Which of the following elements is a noble gas?

26. What is the primary function of enzymes in the body?

27. What type of reaction is represented by the equation A + B → AB?

28. What is the unit of measurement for the amount of substance?

29. Which of the following is a characteristic of acids?

30. What is the term for the minimum amount of energy required to start a chemical reaction?

31. What is the atomic number of Carbon?

32. Which of the following is a compound?

33. What is the pH of pure water at 25°C?

34. Which gas is produced during the process of photosynthesis?

35. What is the main component of natural gas?

36. What type of bond involves the sharing of electron pairs?

37. Which of the following is an example of an endothermic reaction?

38. What is the chemical formula for table salt?

39. Which of the following represents a physical change?

40. What is the process called when a solid turns directly into a gas?

41. Which of the following elements is a noble gas?

42. What is the primary gas responsible for the greenhouse effect?

43. What is the process by which plants convert carbon dioxide into glucose?

44. Which of the following is a characteristic of metals?

45. What is the main use of sulfuric acid?