Alkenes and Ethanol GCSE Chemistry Quiz

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  • Created by: mollie os
  • Created on: 08-10-12 22:20

1. Why does the bromine water change?

  • Existing single bonds join with the bromine
  • Double bonds open up and form bonds with the bromine
  • The alkenes causes the Bromine water to evaporate away
  • The alkenes absorb the colour
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2. What is an advantage of creating ethanol through fermantation

  • Its renewable
  • Its already pure
  • Its cheaper
  • Its very concentrated

3. What is the correct word equation for ethanol being produced through fermantation

  • sugar -> carbon dioxide + ethanol
  • sugar + carbon dioxide -> ethanol
  • salt + hydrogen oxide -> ethanol + sugar
  • hydrocarbon + carbon dioxide -> ethanol + sugar

4. What general formula do all alkenes have

  • None
  • C2nHn
  • CnH2n
  • CnHn

5. What is the process in which ethane reacts with steam to produce ethanol?

  • Cracking
  • Hydration
  • Polymerization
  • Catalyst
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Comments

MaryrapterA

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Very good test here! Perhaps a follow up of alkanes could be useful! :)

MaryrapterA

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Very good test here! Perhaps a follow up of alkanes could be useful! :)

ALICIA SMITH

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really good but for question 3 the general formula is CnH2n+2 just to correct you:) 

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