Chemistry Quiz on Hydrocarbons

Which of the following statements concerning saturated hydrocarbons is incorrect?

• Every carbon atom present must have four bonds

• All bonds present must be single bonds

• Every carbon atom present must be bonded to at least one hydrogen atom

• This classification includes both alkanes and cycloalkanes

The formula CH3-CH2-CH2-CH2-CH3 is an example of which of the following?

• An expanded structural formula

• A condensed structural formula

• A skeletal structural formula

• A line-angle structural formula

Which of the following chemical formula is correct for octene?

• C8H14

• C8H16

• C8H18

• C8H2

What happens to the boiling point of hydrocarbon compounds when the number of carbon atoms increases?

• remains the same

• decreases

• increases

• increases then decreases

What is the maximum number of bonds carbon atom can form?

• 2

• 3

• 4

• 5

Why are carbon atoms able to form many organic compounds?

• carbon atoms have strong attraction to other elements

• carbon atoms attract electrons from other atoms

• carbon atoms can form many types of bonds with other carbon

• all of the above

Which hydrocarbon compound has a double bond in the molecule?

• ethane

• propene

• methane

• propyne

To which group of hydrocarbon does the molecule with the structure belong? CH2=CH-CH2-CH2-CH3

• alkane

• alkene

• alkyne

• none of the above

Which alkene will most likely have the highest boiling point?

• ethene

• pentene

• propene

• hexene

Which hydrocarbon compound has a triple bond in the molecule?

• Octane

• methane

• ethene

• ethyne