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Lesson Worksheet: Hydrocarbons Chemistry

In this worksheet, we will practice identifying and naming simple hydrocarbons and representing them using different types of formulas.

Q1:

Nonane, CH920, is a hydrocarbon found in JP-8, a type of jet fuel. Why is nonane a hydrocarbon?

  • AIt contains hydrogen and carbon in the correct ratio.
  • BIt is made from crude oil.
  • CIt contains hydrogen and carbon.
  • DIt contains only hydrogen and carbon.
  • EIt can be used as a fuel.

Q2:

Complete the alkanes in the correct order: , ethane, , butane, pentane, , heptane.

  • AMethane, hexane, propane
  • BPropane, methane, hexane
  • CMethane, propane, hexane
  • DHexane, methane, propane
  • EPropane, hexane, methane

Q3:

Which combination of elements are hydrocarbons made from?

  • AHydrogen, carbon, oxygen, and nitrogen
  • BHydrogen, carbon, and nitrogen
  • COxygen and carbon
  • DHydrogen, carbon, and oxygen
  • ECarbon and hydrogen

Q4:

Which type of formula is used to represent the molecule in this diagram?

CHHCHHHH
  • ACondensed
  • BEmpirical
  • CStructural
  • DMolecular
  • EDisplayed

Q5:

The diagram shows a common hydrocarbon.

CHHCHHHCCHHHHH

What is the molecular formula of this hydrocarbon?

  • AH(CH)H24
  • BCHCH2525
  • CHCHCHCHCHH2222
  • DCHCHCHCH3223
  • ECH410

Q6:

What is the displayed formula for heptane?

  • A
    CHCHHCHHHCHHHCHHCCHHHHCHHH
  • BCH714
  • CCH818
  • DCHCHCHCHCHCHCH3222223
  • E
    CCHHHHCHHCHHCHCHHHCHHHH

Q7:

What is the structural formula of propane?

  • A
    CHHCHHCHCHHHHH
  • BCH410
  • CCH38
  • D
    CHCHHCHHHHH
  • ECHCHCH323

Q8:

Which of the following diagrams shows a molecule of ethane?

  • A
    CCHHHHHCCHHHHCHHH
  • B
    CHHCHHCHHHH
  • C
    CHHHCHHCHHCHHH
  • D
    CHHHH
  • E
    CHHHCHHH

Q9:

What is the molecular formula of butane?

  • A
    CHHHCHCHHHCHHH
  • BCH38
  • C
    CHHCHCHHHHH
  • DCH410
  • ECHCHCH323

Q10:

Which of the following diagrams shows a molecule of pentane?

  • A
    CHHCHCHHHHH
  • B
    CHCHHHHCHHCHHH
  • C
    CHCHHHCHHCHHCHHHH
  • D
    CHHHH
  • E
    CCHHHHHH

This lesson includes 17 additional questions and 24 additional question variations for subscribers.

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