01
Choose one
1 point
A neutral nitrogen atom is bonded to three carbon groups. Which classification applies?
Free Practice Quiz Question List
08 Amines and Nitrogen-Containing Functional Groups Online Quiz Questions
Use this free practice quiz with 20 questions to review 08 Amines and Nitrogen-Containing Functional Groups, test your knowledge, and prepare for your next test or exam.
20 questions
02
Choose one
1 point
During an acid–base extraction of a mixture containing a neutral amine, what happens to the amine after aqueous acid is added?
- A
The aqueous layer contains the protonated amine as an ammonium salt.
- B
The aqueous layer contains only the neutral amine, which cannot be protonated.
- C
The amine is converted into an amide in the aqueous layer.
- D
The amine becomes a quaternary ammonium ion by gaining another carbon group.
03
Choose one
1 point
What product forms when aniline reacts with an acetylating reagent?
- A
An imine
- B
A quaternary ammonium salt
- C
Acetanilide
- D
An enamine
04
Choose all
1 point
Select all statements that correctly describe amine synthesis methods.
- A
Gabriel synthesis can be used to obtain a primary amine.
- B
Reducing a nitrile gives a primary amine with one more carbon in the chain than the alkyl halide used to prepare the nitrile.
- C
Reducing a nitro group produces an amine.
- D
Direct alkylation reliably prevents further alkylation and gives a single substitution level.
05
Choose all
1 point
Select all correct pairings of amine type and carbonyl-condensation product.
- A
A primary amine reacting with an aldehyde or ketone can form an imine.
- B
A secondary amine reacting with a carbonyl compound that has an alpha hydrogen can form an enamine.
- C
A primary amine reacting with a carbonyl compound forms an enamine in the usual condensation described here.
- D
A secondary amine forms an imine with any carbonyl compound, whether or not it has an alpha hydrogen.
06
True or false
1 point
An amide nitrogen is generally far less basic than an amine nitrogen because its lone pair is delocalized into the carbonyl.
- A
True
- B
False
07
True or false
1 point
In water, secondary amines are always stronger bases than primary and tertiary amines.
- A
True
- B
False
08
True or false
1 point
Hofmann elimination of a quaternary ammonium salt often favors formation of the less substituted alkene.
- A
True
- B
False
09
Written response
1 point
What functional group is typically formed when a primary amine condenses with an aldehyde or ketone?
10
Written response
1 point
A primary aromatic amine treated with nitrous acid under cold acidic conditions forms what class of intermediate?
11
Fill in the blank
1 point
When an amine donates its nitrogen lone pair to an electrophile, it acts as a .
12
Fill in the blank
1 point
Because repeated alkylation may occur, direct alkylation can produce when a single substitution level is desired.
13
Open ended
1 point
You need a primary amine whose carbon chain has one more carbon than a specified alkyl halide. Describe a suitable route from the alkyl halide and explain how the route achieves the chain extension.
14
Choose one
1 point
Cyclohexanone reacts with ammonia to form an imine or iminium intermediate, which is then reduced. What class of amine is produced?
- A
A secondary amine
- B
A primary amine
- C
A tertiary amine
- D
A quaternary ammonium ion
15
Choose one
1 point
Why is the nitrogen in an amide generally less basic than the nitrogen in a typical amine?
- A
The amide nitrogen is more basic because the carbonyl increases its electron density.
- B
The amide nitrogen is less basic because its lone pair is delocalized into the carbonyl.
- C
The amide nitrogen is more basic because it has fewer carbon groups attached.
- D
The amide nitrogen is equally basic because both groups contain nitrogen.
16
Written response
1 point
How many carbon-containing groups are bonded to the nitrogen in a tertiary amine?
17
Written response
1 point
What is the common name of the amine formed by reducing nitrobenzene?
18
Choose one
1 point
Direct substitution on an aromatic ring is difficult, but a halogen is needed at the position occupied by an amino group. Which strategy uses the amino group to enable this substitution?
- A
Directly alkylate the aromatic ring with an alkyl halide.
- B
Reduce the aromatic amine to an alkane, then add the desired group.
- C
Convert the primary aromatic amine into an arenediazonium salt, then replace the diazonium group.
- D
Acylate the aromatic amine and hydrolyze the aromatic ring.
19
Choose one
1 point
A ketone is reacted with a secondary amine to form an iminium intermediate, which is then reduced. What type of nitrogen-containing product is expected?
- A
A primary amine, because reduction removes one carbon group from nitrogen.
- B
A secondary amine, because the carbonyl carbon becomes a hydrogen.
- C
An amide, because reduction converts the carbonyl group into an amide.
- D
A tertiary amine, because the carbonyl carbon forms a new bond to nitrogen.
20
Choose one
1 point
A secondary amine reacts with a ketone that has an alpha hydrogen under condensation conditions. Which product class is expected?
- A
An imine, because secondary amines always form a carbon–nitrogen double bond.
- B
An enamine, because a secondary amine reacts with a carbonyl compound that has an alpha hydrogen.
- C
An amide, because condensation always incorporates the carbonyl oxygen into nitrogen.
- D
A diazonium salt, because the carbonyl compound supplies a diazonium group.