Hydrocarbon Basics

What is the general formula for alkanes?

• CnH2n+2

• CnH2n+4

• CnH2n

• CnH2n-2

Explain the concept of structural isomerism in hydrocarbons.

• Structural isomerism is related to the color of the hydrocarbon compounds.

• Structural isomerism only occurs in inorganic compounds, not hydrocarbons.

• Structural isomerism in hydrocarbons occurs when compounds have the same molecular formula but different structural arrangements.

• Structural isomerism is when compounds have different molecular formulas but the same structural arrangements.

How many isomers does butane have?

• 5

• 4

• 2

• 3

What is the difference between straight-chain and branched-chain alkanes?

• Straight-chain alkanes are cyclic while branched-chain alkanes are linear

• Straight-chain alkanes have fewer carbon atoms than branched-chain alkanes

• The main difference is in the arrangement of carbon atoms, where straight-chain alkanes have a linear structure and branched-chain alkanes have a non-linear structure with side chains.

• Straight-chain alkanes have higher boiling points than branched-chain alkanes

Can you give an example of a cyclic alkane?

• Cyclooctane

• Cyclohexane

• Cyclopentane

• Cyclopropane

What is the general formula for alkanes?

• CnH2n+2

• CnH2n+4

• CnH2n

• CnH2n-2

Explain the concept of structural isomerism in hydrocarbons.

• Structural isomerism is related to the color of the hydrocarbon compounds.

• Structural isomerism only occurs in inorganic compounds, not hydrocarbons.

• Structural isomerism in hydrocarbons occurs when compounds have the same molecular formula but different structural arrangements.

• Structural isomerism is when compounds have different molecular formulas but the same structural arrangements.