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Quiz

Alcohols

Eleanor H 17 perguntas Atualizado em 6 out 2016

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Perguntas do quiz (17)

  1. 1Is this alcohol a Primary, Secondary or Tertiary Alcohol?Imagem da pergunta 1
    1. APrimary
    2. BSecondary
    3. CTertiary
  2. 2Is this a Primary, Secondary or Tertiary Alcohol?Imagem da pergunta 2
    1. APrimary
    2. BSecondary
    3. CTertiary
  3. 3Is this a Primary, Secondary or Tertiary Alcohol?Imagem da pergunta 3
    1. APrimary
    2. BSecondary
    3. CTertiary
  4. 4Elimination of water from an Alcohol is also known as [blank_start]a Dehydration[blank_end] Reaction. It allows the creation of [blank_start]Alkenes[blank_end] from a renewable source. Water is the other product.
    The industrial method heats [blank_start]Ethanol[blank_end] with concentrated [blank_start]Sulfuric[blank_end] Acid which acts as a catalyst. The resulting mixture contains the products, reactants and the acid. To separate the mixture, [blank_start]a Distillation[blank_end] Reaction is required which relies on the differences in boiling points. However, some impurities will still be present, so a separating funnel is required. Water is added to dissolve the water-soluble impurities and then the mixture is allowed to separate out into layers. The bottom layer is filtered out and purified using anhydrous [blank_start]Calcium Chloride[blank_end]. The resulting mixture is [blank_start]distilled[blank_end] again to get the required product.
    1. Aa Dehydration
    2. Ban Evaporation
    3. Ca Hydrolysis
    4. Da Condensation
    5. EAlkenes
    6. FAlkanes
    7. GAcids
    8. HAlkalis
    9. IEthanol
    10. JMethanol
    11. KCyclohexanol
    12. LButanol
    13. MSulfuric
    14. NNitric
    15. OHydrochloric
    16. PEthanoic
    17. Qa Distillation
    18. Ran Evaporation
    19. Sa Substitution
    20. TCalcium Chloride
    21. UCopper Sulfate
    22. Vdistilled
    23. Wevaporated
    24. Xsubstituted
  5. 5Alcohols are produced by the [blank_start]Hydration[blank_end] of [blank_start]Alkenes[blank_end] using steam in the presence of an acid catalyst.
    1. AHydration
    2. BAddition
    3. CCondensation
    4. DSubstitution
    5. EAlkenes
    6. FAlkanes
    7. GAlkalis
  6. 6Select all the requirements for the production of Ethanol using Ethene and steam.
    1. A300C
    2. B10 atm pressure
    3. Csolid Phosphoric Acid catalyst
    4. Dliquid Sulfuric Acid catalyst
  7. 7Select all the conditions required for the fermentation of Glucose to produce Ethanol.
    1. AYeast
    2. Bwith Oxygen
    3. C30-40C
    4. DpH of 4.5
  8. 8Fermentation produces a mixture containing 15% Ethanol which needs to be distilled to concentrate it so that it can be of any use as a fuel. Water boils at 100C and Ethanol at 78.4C. So it all seems relatively easy. HOWEVER, Ethanol and Water form a mixture called an [blank_start]Azeotrope[blank_end] which boils at 78.1C and contains 95.6% Ethanol and 4.4% Water. Distillation alone can't make Ethanol any more concentrated. The [blank_start]Azeotrope[blank_end] must be [blank_start]dehydrated[blank_end] to remove the water content before it is mixed with petrol.
    1. AAzeotrope
    2. BAllotrope
    3. CAzeotrope
    4. DAllotrope
    5. Edehydrated
    6. Fevaporated
    7. Gcondensed
    8. Hhydrolysed
  9. 9What are the benefits of Fermentation as a method of producing Ethanol?
    1. AThe Atom Economy is high
    2. BIt does not use up Crude Oil but uses Renewable materials so it's Carbon Neutral
    3. CIt's a fast process
    4. DIt costs less than a continual process
    5. EIt's carried out at a lower temperature and pressure than Hydration of Steam
  10. 10What are the disadvantages of Fermentation as a method of producing Ethanol?
    1. AIt's a slow reaction
    2. BThe yield is low
    3. CIt has to be done in batches - not a continuous process
    4. DIt's highly exothermic

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Descrição
Test your knowledge of Alcohols for A-Level Chemistry
Idioma
English
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646
Histórico
Criado em 6 jun 2016 · atualizado em 6 out 2016
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