Quiz on Homologous Series and Alkanes

What is a homologous series?

• A group of compounds with different chemical properties

• A family of compounds with a general formula and similar chemical properties

• A single compound with varying properties

• A mixture of unrelated compounds

As the number of carbon atoms in alkanes increases, what happens to flammability?

• Increases

• Decreases

• Stays the same

• Disappears

What happens to the melting points and boiling points of alkanes as the number of carbon atoms increases?

• Decrease

• Increase

• Stay the same

• Fluctuate

What is the effect of molecular size on the viscosity of alkanes?

• Decreases viscosity

• Increases viscosity

• No effect

• Random effect

What are the products of complete combustion of alkanes?

• Water and carbon monoxide

• Water and carbon dioxide

• Carbon monoxide and hydrogen

• Methane and water

What is the main product of complete combustion besides water?

• Carbon monoxide

• Carbon dioxide

• Methane

• Oxygen

What type of reaction occurs when alkanes react with chlorine in the presence of ultraviolet light?

• Addition

• Substitution

• Elimination

• Polymerization

Which of the following is a characteristic of a substitution reaction?

• Formation of a double bond

• Replacement of an atom or group

• Breaking of a carbon chain

• Formation of a polymer

What is the general formula for alkanes?

• CnH2n+2

• CnH2n

• CnH2n-2

• CnH2n+1

Name the type of reaction that occurs when an alkane reacts with chlorine.

• Addition

• Substitution

• Combustion

• Polymerization