What is a hydrocarbon?

• A hydrocarbon is a mixture of gases and liquids.

• A hydrocarbon is a compound made of oxygen and nitrogen.

• A hydrocarbon is a type of metal alloy.

• A hydrocarbon is a compound consisting entirely of hydrogen and carbon.

Name the two main types of hydrocarbons.

• Saturated and Unsaturated

• Linear and Branched

• Organic and Inorganic

• Aliphatic and Aromatic

What is the general formula for alkanes?

• CnH(2n+2)

• C(n-1)H(2n+1)

• CnH(2n-2)

• CnH2n

How do alkenes differ from alkanes?

• Alkenes contain more hydrogen atoms than alkanes.

• Alkenes have at least one double bond, while alkanes have only single bonds.

• Alkenes have only single bonds, while alkanes have double bonds.

• Alkenes are saturated hydrocarbons, while alkanes are unsaturated.

What is the significance of the double bond in alkenes?

• The double bond in alkenes increases reactivity and allows for geometric isomerism.

• The double bond in alkenes decreases reactivity and prevents isomerism.

• The double bond in alkenes has no effect on molecular structure.

• The double bond in alkenes is only significant in aromatic compounds.

Define aromatic hydrocarbons.

• Aromatic hydrocarbons are hydrocarbons that do not contain any carbon atoms.

• Aromatic hydrocarbons are saturated hydrocarbons with no rings.

• Aromatic hydrocarbons are compounds that contain only aliphatic chains.

• Aromatic hydrocarbons are hydrocarbons that contain one or more benzene rings.

Give an example of a saturated hydrocarbon.

• butane

• ethane

• cyclohexane

• propane

What is the main characteristic of unsaturated hydrocarbons?

• They contain at least one double or triple bond between carbon atoms.

• They contain only single bonds between carbon atoms.

• They have no carbon atoms in their structure.

• They are saturated with hydrogen atoms.

How are hydrocarbons classified based on their structure?

• Hydrocarbons are only classified as saturated and unsaturated.

• Hydrocarbons are classified as aliphatic (alkanes, alkenes, alkynes) and aromatic.

• Hydrocarbons are classified based on their color and smell.

• Hydrocarbons are categorized into solid, liquid, and gas forms.

What is the simplest alkene?

• pentene

• butene

• ethene

• propene