Alkanes and Alkenes

Name this alkane

• Methane
• Ethane
• Propane
• Butane

Classify the compound based on the functional group present.

• alkane
• alkene
• alkyne
• aromatic

For a compound to be considered an organic compound it must contain

• Carbon

• Hydrogen

• Oxygen

• Nitrogen

Hydrocarbons are compounds that contain

• only carbon atoms.

• only carbon and hydrogen atoms.

• only carbon, oxygen, and hydrogen atoms.

• carbon, oxygen, hydrogen, and nitrogen atoms

Unsaturated molecules contain...

• A carbon to carbon double bond

• Only single bonds between carbon atoms

• A water molecule

• A hydroxyl group

Name the compound.

• hexane
• 2,3-dimethylbutane
• ethylbutane
• 2,2-dimethylbutane

Which formula represents a saturated hydrocarbon?

• A
• B
• C
• D

What is the observation obtained when alkene react with acidified KMnO₄?

• The purple solution is decolourized.

• The solution remains purple.

• The solution turns pink.

• A precipitate is formed.

Which formula represents an unsaturated hydrocarbon?

• A
• B
• C
• D

What is the general formula of an alkane?

• 2n+2
• C_nH_2n+2

• C_nH_2n

• C_nH_n

Answer explanation

An alkane has a formula of C_nH_2n+2 and an alkene has a formula of C_nH_2n.