Naming Hydrocharbons

How many structural isomers are there for C₄H₁₀?

• 1

• 2

• 3

• 4

What is the correct name for the following compound?

• 3,4-dimethylheptane

• 4-methyl-5-ethylhexane

• 3-methyl-4-propylpentane

• 4,5-dimethylheptane

When naming organic compounds:

• only the longest chain is included
• the parent chain must be in a straight line in the diagram
• the substituent groups are listed in numerical order
• the substituent groups are listed in alphabetical order

What is the correct name for the alkyne shown?

• butyne

• 1-butyne

• 2-butyne

• 1-methyl-1-propyne

Which compound has the highest boiling point?

• ethane
• butane
• pentane
• 2-methylbutane

The main intermolecular force of attraction between hydrocarbons is:

• covalent bonds
• hydrogen bonds
• dipole–dipole forces
• dispersion forces

Alkenes are:

• saturated, because they do not have the maximum number of hydrogen atoms
• unsaturated, because they do not have the maximum number of hydrogen atoms
• unsaturated, because they have the maximum number of hydrogen atoms
• aromatic compounds

Compounds containing one or more benzene rings are called:

• alkanes
• alicyclic compounds
• aliphatic compounds
• aromatic compounds

When a carbon atom has four single bonds, the geometrical arrangement of atoms around it is described as:

• trigonal pyramid
• tetrahedral
• planar
• linear

Which of the following is correct about structural isomers?

• They have different molecular formulas
• They must have any double or triple bonds in the same position
• They can be either positional or chain isomers
• They must have the same length main chain