reactions of organic compounds

• what different names can reactions of organic compounds be classified into?

  • substitution
  • addition
  • combustion
• what is a substitution reaction?

  a reaction which takes place when one functional group is replaced by another
• what is an example of a substitution reaction?

  when methane reacts with bromine under ultraviolet light
• what is an addition reaction?

  a reaction which takes place when two or more molecules combine to form a larger molecule with no other products
• what is an example of an addition reaction?

  bromine reacts with ethene, and the bromine molecule reacts and adds across the double bond of the ethene
• what is combustion?

  • scientific word for burning
  • an organic substance reacts with oxygen to form carbon dioxide (or carbon monoxide if incomplete combustion) and water
• what is an example of combustion?

  alkene burns when heated in air or oxygen
• what is complete combustion?

  when there is an unlimited supply of air/oxygen, the products are carbon dioxide and water
• what is incomplete combustion?

  when there is a limited supply of air/oxygen, the products are carbon monoxide + water