Reactions of Alkenes

• What does CLV stand for in organic chemistry?


  CLV stands for Chain Length Variation.
• What does Pe represent in organic chemistry?

  Pe represents Polymerization Energy.
• What does M stand for in the context of organic reactions?

  M stands for Molarity.
• What is the term used for the addition of hydrogen to alkenes?

  The addition of hydrogen to alkenes is known as Hydrogenation.
• How can steam react with alkenes?

  Steam can react with alkenes to form alcohols.
• What can halogens do in relation to alkenes?

  Halogens can react with alkenes.
• What happens when bromine is added to an alkene?

  The addition of bromine to a double bond can be used to test for unsaturation.
• What color change occurs when bromine is added to an alkene?

  The orange color of bromine disappears when it reacts with an alkene.
• What is the word equation for the reaction of propene with hydrogen in the presence of a nickel catalyst?

  Propene + Hydrogen → Propane.
• What are the displayed formulas for propene and propane?

  Propene is C₃H₆ and propane is C₃H₈.
• What are the key reactions of alkenes?

  • Hydrogenation: Addition of hydrogen to form alkanes.
  • Hydration: Reaction with steam to form alcohols.
  • Halogenation: Reaction with halogens to form dihalides.
• What is the significance of double bonds in alkenes?

  Double bonds in alkenes allow for addition reactions, increasing reactivity.
• What is the temperature at which propene reacts with hydrogen in the presence of a nickel catalyst?

  The reaction occurs at 60°C.
• What is the role of a nickel catalyst in the hydrogenation of propene?

  The nickel catalyst facilitates the addition of hydrogen to propene.