Understanding Alkanes

What is the simplest alkane, and what is its chemical formula?

• Propane, C3H8

• Ethane, C2H6

• Methane, CH4

• Butane, C4H10

How do alkanes differ from unsaturated hydrocarbons?

• Alkanes have double bonds, while unsaturated hydrocarbons have single bonds.

• Alkanes have triple bonds, while unsaturated hydrocarbons have double bonds.

• Alkanes have no bonds, while unsaturated hydrocarbons have single bonds.

• Alkanes have single bonds, while unsaturated hydrocarbons have double or triple bonds.

What is the correct name for a molecule with a methyl group on the second carbon of a pentane chain?

• 3-ethylpentane

• 2-ethylpentane

• 3-methylpentane

• 2-methylpentane

Which of the following is a reaction that alkanes can undergo?

• Hydrolysis

• Hydration

• Polymerization

• Combustion

What is a characteristic feature of cyclic alkanes?

• They have linear geometries.

• They contain double bonds.

• They adopt interesting geometries due to sp3 hybridization.

• They are always aromatic.