Hydrocarbons and Halocarbons Quiz

What is the general formula for alkanes?

• CnHn+2

• CnH2n

• CnH2n-2

• CnH2n+2

How many carbon atoms are present in butane?

• 10

• 4

• 6

• 8

What is the general formula for alkenes?

• CnHn

• CnH2n

• CnH2n+2

• CnHn-2

What is the difference between alkanes and alkenes?

• Alkanes have only single bonds, while alkenes have at least one double bond.

• Alkanes have a higher carbon content than alkenes.

• Alkanes and alkenes are the same and can be used interchangeably.

• Alkanes have at least one double bond, while alkenes have only single bonds.

What is the general formula for alkynes?

• CnH2n+2

• CnH2n

• CnH2n-1

• CnH2n-2

How many carbon-carbon double bonds are present in propyne?

• 2

• 0

• 1

• 3

What are chlorofluorocarbons commonly used for?

• Construction materials

• Fertilizer production

• Refrigerants, solvents, and propellants in aerosol sprays

• Food preservatives

Why are chlorofluorocarbons harmful to the environment?

• They increase the ozone layer

• They deplete the ozone layer

• They have no impact on the environment

• They help in reducing global warming

How do you name a hydrocarbon with 5 carbon atoms and only single bonds?

• Hexane

• Butane

• Methane

• Pentane

What is the name of the hydrocarbon with the formula C3H8?

• propane

• methane

• ethanol

• butane