Unit 12, Topic 1 - Organic Review

A molecule of ethane and a molecule of ethene have the same

• empirical formula

• molecular formula

• number of hydrogen atoms

• number of carbon atoms

In which pair of hydrocarbons does each compound contain only one double bond per molecule?

• C₂H₂ and C₂H₆

• C₂H₂ and C₃H₆

• C₄H₈ and C₂H₄

• C₆H₆ and C₇H₈

What is the maximum number of covalent bonds that can be formed by one carbon atom?

• 1

• 2

• 3

• 4

Which formula represents an unsaturated hydrocarbon?

• C₂H₆

• C₃H₈

• C₅H₈

• C₆H₁₄

Which element is present in all organic compounds?

• phosphorus

• carbon

• oxygen

• nitrogen

The three isomers of pentane have different

• chemical formulas

• empirical formulas

• formula masses

• structural formulas

Which of the following compounds has the lowest boiling point?

• ethane

• pentane

• propane

• butane