IGCSE Chemistry - Industrial Processes

The Haber Process and the Contact Process

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1. What is the process of making Ammonia from the raw materials Nitrogen and Hydrogen?

  • The Haber Process
  • The Contact Process
  • The Ammonia Process
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2. What happens to the unreacted Nitrogen and Hydrogen from the Haber Process?

  • They become chemically inert
  • They pass into a chimney where they are released into the atmosphere
  • They are pumped back into the reactor
  • They are used in the industrial processes of making acids

3. How are Hydrogen, Chlorine and Sodium Hydroxide manufactured?

  • Electrolysis of brine
  • Reacting salt solution with hydrochloric acid
  • Evaporating brine

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

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

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

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

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