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6 marksReactions of Carbon Compounds

CSEC Chemistry · January 2009 · Paper 2 · Question 5(a)(i)

Ethanol is an important commodity, commercially obtained from ethene and carbohydrates.

Write a chemical equation to illustrate the reaction taking place in the commercial preparation of ethanol from EACH of the following: a) Ethene b) Glucose. In EACH case you should state the reaction conditions.

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Other parts of this question

  1. 5(a)(ii)Draw a fully labelled diagram of the apparatus that is used to separate the ethanol from the reaction mixture during the fermentation of glucose.[3 marks]
  2. 5(b)(i)Using Compound C to represent the structure of a fat, draw the structure of the product(s) expected from the saponification of this fat.[3 marks]
  3. 5(b)(ii)Write an equation to illustrate the process of hydrogenation of an oil represented by Compound D. You should name the catalyst used in the process.[3 marks]

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