Exam 2 Flashcards
(43 cards)
The boiling point of ethylamine is higher than that of propane but lower than that of 1-propanol. This means that
-the intermolecular forces between two amine molecules are only London dispersion forces.
-hydrogen bonds between two amino groups are weaker than those between two alcohol groups.
-the intermolecular forces between two amine molecules are only dipole-dipole.
-the intermolecular forces between two amine molecules are ionic in nature.
-a molecule of ethylamine cannot form a hydrogen bond with another molecule of itself.
hydrogen bonds between two amino groups are weaker than those between two alcohol groups.
Which of the following is an acetal?
Which of the following molecules is an example of a secondary amine?
All of the following are characteristics of alkaloids except
basic.
pleasant smelling.
physiologically active.
bitter tasting.
toxic to humans in high doses.
pleasant smelling
Which class of amines cannot form hydrogen bonds with itself?
1°
2°
3°
A and B
all of the above
3°
What is the correct IUPAC name for the following compound?
ethyl phenyl amine
2-ethyl aniline
N-ethyl aniline
ethyl aniline
N-ethyl aniline
Which observation denotes a positive Benedict’s test?
-A red-brown solution becomes clear and colorless.
-A red precipitate forms from a blue solution.
-A pale yellow solution with an odor of chlorine changes to a purple color.
-A mirror-like deposit forms from a colorless solution.
-A purple solution yields a brown precipitate.
A red precipitate forms from a blue solution.
Which molecule shown is a primary alcohol?
When a thiol is oxidized the product is
an alkene.
sulfuric acid.
an aldehyde.
a ketone.
a disulfide.
a disulfide.
The reaction that occurs between an amine and an acid is best illustrated by
-(CH3)2NH + HCl → (CH3)2NH2 + Cl-.
-(CH3)2NH + HCl → (CH3)2NH2+ + OH-.
-(CH3)2NH + HCl → (CH3)2NH + Cl-.
-(CH3)2NH + H2O → (CH3)2N + H3O+.
-(CH3)2NH + HCl → (CH3)2NH Cl- + H3O+.
(CH3)2NH + HCl → (CH3)2NH2 + Cl-.
Amines are most similar in chemical structure and behavior to
the hydronium ion.
-a primary alcohol.
-sodium hydroxide.
-water.
-ammonia.
ammonia
What is the major organic product of the following reaction?
What is the most important chemical property of amines?
-They are strong bases.
-They are weak bases.
-They are weak acids.
-They are strong acids.
-They are oxidizing acids.
They are weak bases.
Which molecule shown is an ether?
What is the line bond drawing for 2-phenyl-3-pentanol
Which molecule is a heterocyclic compound?
Which compound would have the highest boiling point?
Which of the following is the correct line drawing for 2,4-dimethyl-3-pentanone?
What is the IUPAC name of the compound shown?
3-methylbutanal
The common name of CH3CH2OH is
rubbing alcohol
grain alcohol
wood alcohol
glycerol
antifreeze
grain alcohol
The major product obtained from dehydration of 2-hexanol is
2-hexene
3-hexene
1-hexene
2-hexanal
2-hexanone
2-hexene
The symbol [O] written above a reaction arrow means
-that an oxidation reaction is occurring.
-oxygen is removed from one of the reactants during the reaction.
-that a reduction reaction is occurring and oxygen is liberated.
-the reaction consumes oxygen from the atmosphere.
-none of the above
that an oxidation reaction is occurring.
An amine that is insoluble in water can be made to dissolve by adding it to an aqueous solution of
HCL
an amide
a different amine
NaOH
none of the above; It can’t be made water soluble
HCL
