Introduction to Organic Chemistry

Which two elements do all organic compounds contain?

• Carbon and hydrogen

• Carbon and oxygen

• Oxygen and hydrogen

• Carbon and nitrogen

Organic compounds made only of the elements carbon and hydrogen are called...

• Hydrocarbons

• Carbohydrogens

• Carbohydrates

• Hydrocarbonates

Which one of the following characteristics is not correct for all of the members of the same homologous series?

• Same general formula

• Similar chemical properties, i.e. undergo the same reactions

• Varying physical properties, i.e. change in a predictable way

• Different functional group

Alkane molecules are made of which elements?

• Carbon and hydrogen

• Carbon, hydrogen and oxygen

• Carbon and oxygen

• Carbon, nitrogen and hydrogen

All molecules of the alkane homologous series have which ending in their name?

• -ane

• -ene

• -anol

• -anoic acid

The first four alkanes are listed below. In which list are they placed in the correct order, i.e. increasing number of carbon atoms?

• methane, ethane, propane, butane

• ethane, methane, propane, butane

• methane, ethane, butane, propane

• methane, propane, ethane, butane

Which is the correct general formula for the alkanes?

• C_nH_2n+2

• C_nH_2n

• C_nH_2n+1OH

• C_nH_2n+1COOH

Which type of bonding is present within organic molecules?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

Which list does NOT contain compounds found in the same homologous series?

• methane, ethane, propane, butane

• Pentane, hexanol, heptane, octane

• nonane, decane, undecane, dodecane

• tridecane, tetradecane, pentadecane, hexadecane

What is the name of the alkane shown here?

• Methane

• Ethane

• Propane

• Butane