Hydrocarbons Quiz

What is a hydrocarbon?

• A compound made of only carbon and hydrogen atoms

• A compound made of carbon, hydrogen, and oxygen atoms

• A compound made of carbon, hydrogen, and nitrogen atoms

• A compound made of carbon, hydrogen, and sulfur atoms

Take a look at the boiling points for different hydrocarbons. What do you notice about the relationship between them?

• a. Boiling points increase with molecular weight

• b. Boiling points decrease with molecular weight

• c. Boiling points remain constant

• d. Boiling points are unpredictable

Which of the following are branched alkanes that can be drawn as line structures?

• a. Isopropyl

• b. n-butyl, s-butyl, t-butyl, isobutyl

• c. Only n-butyl

• d. Only isobutyl

What is the IUPAC name for the compound with the following structure?

• 2,3-dimethyl-5-ethyloctane

• 3,4-dimethyl-5-propyl-1-heptene

• 1-ethyl-3-methylcyclo-1-pentene

• 2-methyl-4-propyl-5-ethyl-7-decyne

Identify the compound with a double bond in its structure.

• 2,3-dimethyl-5-ethyloctane

• 3,4-dimethyl-5-propyl-1-heptene

• 1-ethyl-3-methylcyclo-1-pentene

• 2-methyl-4-propyl-5-ethyl-7-decyne

Which compound contains a cycloalkene structure?

• 2,3-dimethyl-5-ethyloctane

• 3,4-dimethyl-5-propyl-1-heptene

• 1-ethyl-3-methylcyclo-1-pentene

• 2-methyl-4-propyl-5-ethyl-7-decyne

Which compound has a triple bond in its structure?

• 2,3-dimethyl-5-ethyloctane

• 3,4-dimethyl-5-propyl-1-heptene

• 1-ethyl-3-methylcyclo-1-pentene

• 2-methyl-4-propyl-5-ethyl-7-decyne