IUPAC Nomenclature of Alkenes and Alkynes

Professor Dave explains the nomenclature of alkanes, alkynes, and cyclic compounds. He covers the rules for naming alkenes and alkynes, emphasizing the importance of identifying the longest carbon chain and prioritizing functional groups. The video also addresses common errors in drawing alkynes and provides examples of naming complex molecules with multiple substituents.

What suffix is used to indicate the presence of a double bond in an alkene?

• -ol

• -ene

• -yne

• -ane

When numbering the carbon chain in an alkene, what should be prioritized?

• The longest chain

• The presence of a double bond

• The presence of a halogen

• The presence of a methyl group

What is the hybridization of a carbon atom involved in a triple bond in an alkyne?

• sp

• sp4

• sp2

• sp3

Why is it important to number the carbon chain from the left in the given alkyne example?

• To prioritize the longest chain

• To prioritize the triple bond

• To prioritize the halogen

• To prioritize the methyl group

Which functional group takes the highest priority when naming a complex organic molecule?

• Alkyne

• Halogen

• Alkene

• Hydroxyl

In the example of a complex molecule, which group is listed first in the name?

• Hydroxyl

• Chloro

• Methyl

• Ethyl

What is the correct way to name a molecule with both a double bond and a hydroxyl group?

• List the double bond first

• Drop the 'e' in the alkene suffix

• List the hydroxyl group first

• Use the alkane suffix