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6. What is the chemical formula for sulfuric acid?

  • HSO3
  • H2SO3
  • H2SO4
  • HSO4

7. What is the catalyst for the second stage of the Contact Process?

  • Vanadium Oxide
  • Iron (II) Oxide
  • Alumina
  • Lead

8. What do both the Haber Process and the Contact Process contain?

  • Processes carried out under high pressure
  • Reversible reactions
  • Salt-producing reactions
  • Irreversible processes

9. What is the majority of sulfuric acid used for?

  • Fertiliser by reacting with ammonia/ammonium hydroxide to make ammonium sulfate
  • Used as an acid in classrooms and laboratories for experiments
  • Detergents by reacting with the -OH molecules forming a long chain molecule
  • Making paints - sulfuric acid reacts with ilmenite in one of the stages of obtaining white pigment

10. What is solution mining?

  • Hot water pumped into salt deposits underground, reacts with the salt to form a solution and is pumped back up
  • Mining from salt deposits underground, the mined salt is sent back to the surface where it is added to water to form a solution

11. What is the first stage of the Contact Process?

  • Burning sulfur in air to make sulfur dioxide
  • Sulfur reacts with Ammonia
  • Adding liquefied sulfur to distilled water
  • Sulfuric acid is added to sodium hydroxide

12. What is the third stage of the Contact Process

  • Sulfur trioxide is condensed and stored in pressurised containers
  • Sulfur trioxide reacts with water to form sulfuric acid
  • Sulfur trioxide reacts with hydrogen to form sulfuric acid
  • Sulfur trioxide reacts with ammonium to produce ammonium sulfite

13. What temperature is needed for the second stage of the Contact Process?

  • 450
  • 50
  • 300
  • 650

14. Which is NOT a use of Ammonia?

  • Fertiliser
  • Explosives
  • A biofuel
  • Making nitric acid

15. What pressure is needed for the second stage of the Contact Process?

  • 450 atm
  • 2000 atm
  • 2 atm
  • 200 atm

16. In the process of making Ammonia what pressure is needed?

  • 50 atm
  • 2 atm
  • 200 atm
  • 600 atm

17. In the process of making Ammonia what temperature is needed?

  • 600
  • 2000
  • 450
  • 350

18. What is the chemical formula of Ammonia?

  • NH3
  • NH4
  • CH4
  • CH2O

19. Name the formula for common salt?

  • NaCl
  • NaBr
  • MgCl2
  • H2SO4

20. What happens to the unreacted Ammonia from the Haber Process?

  • It passes into a cooling tank (with the unreacted Nitrogen and Hydrogen) where the Ammonia is liquefied and removed into pressurised storage vessels.
  • It is separated from the unreacted Nitrogen and Hydrogen by fractional distillation
  • It passes into a chimney where it is released into the atmosphere
  • It is desposed of