Chapter 25: Amines

What is the basic nature of amines attributed to?

• The presence of oxygen

• The presence of nitrogen

• The presence of hydrogen

• The presence of carbon

Answer explanation

Amines are basic because the nitrogen atom in amines has a lone pair of electrons that is easily available for protonation. This lone pair of electrons can be donated, making amines bases in the Lewis and Brønsted-Lowry definitions of bases.

How are amines classified?

• By the number of oxygen atoms attached to nitrogen

• By the number of carbon atoms attached to nitrogen

• By the number of hydrogen atoms attached to nitrogen

• By the number of R groups attached to nitrogen

What is aniline?

• An amine attached to a benzene ring

• A primary amine

• A tertiary amine

• An amide attached to a benzene ring

What is the formula for ammonia?

• N2H4

• NH2

• CH4

• NH3

What type of intermolecular force allows amines to be soluble in water?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Metallic bonds

Answer explanation

Amines can form hydrogen bonds because of the polar covalent bond between nitrogen and hydrogen atoms. Primary and secondary amines have hydrogen atoms bonded to nitrogen atoms, and can form hydrogen bonds with each other.

Which compound is responsible for the stink of decaying flesh?

• Methane and dimethylamine

• Putrescine and Cadavarine

• Analine and nitrobenzeni

• Dopamine and Serotonin

What is the role of biogenic amines in the body?

• They have no role.

• They act as nutrients.

• They act as depressants.

• They act as stimulants.

Answer explanation

What is the IUPAC naming convention for amines?

• Adding the suffix -amide to the alkane name

• Adding the prefix amine- to the alkane name

• Adding the suffix -amine to the alkane name

• Adding the prefix amide- to the alkane name

What type of amines are found in DNA? These are also described as a Ring with at least two types of atoms.

• Heterocyclic amines

• Secondary amines

• Primary amines

• Tertiary amines

Answer explanation

What is the effect of epinephrine?

• It relieves pain.

• It acts as a sedative.

• It gives a fight-or-flight response.

• It induces sleep.