Week 3

Question 1

What is a hydrocarbon?

Answer 1

A compound composed only of carbon and hydrogen

Question 2

What is a saturated hydrocarbon

Answer 2

A hydrocarbon containing only carbon-carbon single bonds

Question 3

What is an Alkane?

Answer 3

A saturated hydrocarbon whose
carbons are arranged in an open chain

Question 4

What is a Aliphatic hydrocarbon?

Answer 4

An alternative name for an Alkane

Question 5

What is the shape of Alkanes? Angles?

Answer 5

– Tetrahedral geometry (all carbons are sp3
hybridized).
– All bond angles are approximately 109.5°

Question 6

What is a Line-angle formula?

Answer 6

An abbreviated way to draw structural formulas.
* Each line represents a single bond.
* Each line ending represents a CH3 group.
* Each vertex (angle) represents a carbon atom.

Question 7

What is a Constitutional isomer?

Answer 7

Compounds with the same molecular formula but a different connectivity of their atoms.
– There are two constitutional isomers with the molecular formula C4H10

Question 8

What is the Parent name and the Substituent in IUPAC Nomenclature?

Answer 8

• Parent name The longest carbon chain.
• Substituent: A group bonded to the parent
  chain