Nucleophilic Addition and Aldol Reactions

How do soldier termites defend their nests from invaders?

• By secreting a toxic chemical.

• By biting them with strong jaws.

• By building stronger walls.

• By calling for help from other insects.

What is the role of the worker termite's enzyme in relation to the soldier termite's toxin?

• It makes the toxin stronger.

• It changes the toxic chemical into a harmless form.

• It helps the soldier termites produce more toxin.

• It attracts more invaders to the nest.

Why are aldehydes generally more reactive than ketones in aldol reactions?

• They have more carbon atoms.

• They are less hindered for attack at the carbonyl carbon.

• They are more stable.

• They have a stronger smell.

Which conditions typically favor the formation of a kinetic product in a chemical reaction?

• High temperature and a weak base.

• Low temperature and a strong base.

• High temperature and a strong base.

• Low temperature and a weak base.

What is an enone?

• A chemical compound that has both an alkene (carbon-carbon double bond) and a carbonyl group (carbon-oxygen double bond).

• A chemical compound that only has a carbon-carbon double bond.

• A chemical compound that only has a carbon-oxygen double bond.

• A chemical compound that has a ring structure.

What are the two main types of nucleophilic addition reactions discussed for enones?

• 1,2-nucleophilic addition and 1,4-nucleophilic addition.

• Oxidation and reduction.

• Substitution and elimination.

• Polymerization and cracking.

Which type of nucleophile is more likely to attack the carbonyl carbon of an enone, which is considered a hard electrophile?

• Hard nucleophiles.

• Soft nucleophiles.

• Neutral nucleophiles.

• Large nucleophiles.

What is the chemical weapon of soldier termites, and how does it cause biological upset?

• An enone that causes biological upset through conjugate addition reactions.

• A protein that causes biological upset through oxidation.

• A sugar that causes biological upset through hydrolysis.

• A lipid that causes biological upset through dehydration.