Worksheet: Alkenes

In this worksheet, we will practice writing and interpreting the names and formulas of alkenes and describing trends in properties such as melting points.

Q1:

What is the name of the alkene with the molecular formula C H 3 6 ?

  • A Butene
  • B Propene
  • C Propane
  • D Butane
  • E Ethene

Q2:

What is the name of the alkene with the molecular formula C H 2 4 ?

  • A Ethene
  • B Propene
  • C Methene
  • D Propane
  • E Ethane

Q3:

What is the general formula for an alkene with a single carbon–carbon double bond?

  • A C H 2
  • B C H 2
  • C C H 2 n + 2
  • D C H 2 +
  • E C H

Q4:

Which industrial process produces alkenes from long-chain alkanes?

  • AWater-gas shift reaction
  • B Haber Process
  • C Catalytic cracking
  • D Contact Process
  • E Fractional distillation

Q5:

Which of the following is the structural formula of an alkene?

  • A
    C H C H H H C H C C H C H H H H
  • B
    C C H H H C H O C H H H H H C H H H
  • C
    H C H H C C H H C H Br H H Cl
  • D
    C H C H H C H H C H H C C H H H H H
  • E
    C H H H C H C H C H H H H H

Q6:

Which of the following is not a structural formula of an alkene?

  • A
    C H C H C H C H H C H C H H H H H H
  • B
    C H C H H H H C C C C H H H H H H H
  • C
    C H C H H C H H C H H H
  • D
    C H C H H H
  • E
    C H C H H C C C H C H H H H H H

Q7:

In which of the following phases can alkenes exist at room temperature?

  • ASolids, liquids, and gases
  • BSolids and gases
  • CSolids and liquids
  • DLiquids and gases

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