Functional Groups

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  • Created by: Bilalmah
  • Created on: 13-11-19 16:53
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  • Functional Groups
    • Hydrocarbons
      • Alkanes
        • Single bonds
          • Saturated as no carbon double bonds
        • only carbon and hydrogen
        • General Formula of CnH2n+2
        • Flammable and produced in industry
          • Catalytic Cracking and thermal cracking of large hydrocarbons like decane into smaller ones like butane and an alkene like ethene
          • Fractional distillation
        • Can have isomers
      • Alkenes
        • Produced in industry
        • CnH2n
        • Contains a carbon double bond
          • Unsaturated
            • Makes bromine water turn colorless
        • Can have isomers by E/Z isomerism
      • Alkynes
        • Triple carbon bond
        • CnH2n-2
      • Contains only carbon and hydrogen
    • Alcohols
      • -OH Group
      • An alkane with one of its hydrogens removed and replaced with an oxygen and hydrogen (-OH)
      • Made by 2 ways
        • Fermentation
          • Use glucose and a catalyst which is yeast
            • Produces ethanol and also carbon dioxide which are the holes in bread and cheese
              • C6H12O6---->2C2H5OH + 2CO2
          • An impure method
          • Takes a long time
          • A batch process (inefficient)
          • Old method of using sugar cane and is renewable
        • Hydration of ethene
          • Efficient
          • Pure ethanol obtained
          • Adding water to ethene
            • C2H4 + H2O -> C2H5OH
              • Used in industry a lot
          • Very quick
      • Can have isomers
      • Uses
        • Spirits and drinks
        • Solvents
    • Carboxylic acids
      • Have a COOH bond
        • Carbon double bonded to an oxygen and also single bonded to another oxygen single bonded with hydrogen
          • Hydrogen in bond can be displaced by a more reactive cation like sodium (Na)
      • A weak acid
      • Does not ionise completely
      • Used to make esters by combining it with alcohol to form ester and water
        • Known as esterification
      • Natural
        • Used in amino acids
          • Proteins
          • DNA
        • Fatty acids
          • Lipids and fats
            • For life essentials
              • Used in amino acids
                • Proteins
                • DNA
    • Esters
      • Have a COO bond
        • In the middle
          • Connected on one side to either an aryl or alkyl group and the other side is alkyl or aryl group
      • Uses
        • Preservatives
        • Solvents in perfumes and scents
      • Untitled

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