Organic analysis

• (b) Reaction 3 is an acid-catalysed reaction in which water is used to break chemical bonds when the CN functional group is converted into the COOH functional group.Infrared spectroscopy can be used to distinguish between the compounds in this reaction.

  Deduce the name of the type of reaction that occurs in Reaction 3

  Reaction is a hydrolysis reaction!!!!!!!

  
• In industry, this fermentation reaction is carried out at 35 °C rather than 25 °C. Suggest one advantage and one disadvantage for industry of carrying out the fermentation at this higher temperature.

  Advantage – ethanol is produced at a faster rate

  Disadvantage – more energy is used / required in the reaction
• (METHOD) Ethanol is formed by the fermentation of glucose.A student carried out this fermentation reaction in a beaker using an aqueous solution of glucose at a temperature of 25 °C in the presence of yeast.

  The method used by the student would result in the ethanol being contaminated by ethanoic acid. How does this contamination occur?

  Air gets in/ oxidation occurs