C10.1 reactions of the alkenes

• What is the main reaction type of alkenes?

  Addition reactions
• Why are alkenes more reactive than alkanes?

  Due to the carbon-carbon double bond
• What is produced when ethene reacts with bromine?

  Dibromoethane
• What is the result of alkenes reacting with hydrogen?

  They produce alkanes
• At what temperature does hydrogenation of alkenes occur?

  60°C
• What catalyst is used in the hydrogenation of alkenes?

  Nickel catalyst
• What do alkenes produce when they react with water?

  Alcohols
• What is the product of ethene reacting with water in the presence of a catalyst?

  Ethanol
• What are the key terms related to organic reactions mentioned?

  • Functional group
  • Homologous series
• How does the combustion of alkenes differ from alkanes?

  Alkenes burn with a smokier flame
• What is the general formula for alkenes?

  CnH2n
• What is the reaction of alkenes with halogens called?

  Addition reaction
• What happens to the carbon-carbon double bond during addition reactions?

  It becomes a carbon-carbon single bond
• What is the significance of the carbon-carbon double bond in alkenes?

  It increases their reactivity
• How do the products of alkene reactions contribute to organic chemistry?

  They form the basis for various organic compounds