SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
MCAT Organic Chemistry
Start Test
Study First
Subjects
:
mcat
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Common name for ethyne
pyrolysis
aldehyde
oxidation
Acetylene
2. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
Alkane
methylene
halogenation
Combustion
3. Diol with hydroxyl group on same carbon
geminal
sp
hydroboration
formaldehyde
4. Moleculse that have the opposite configuration at their one chiral center. or if multiple chiral centers - must have the opposite configuration at every one of their chiral centers to be enantiomers. identical physical properties and much of the same
enantiomer
weak bases
Combustion
hydroboration
5. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
structural isomers
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition
gauche conformation
6. N - l - ml - ms
anti conformation
sp2
quantum numbers
relative configuration
7. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
chiral center
electrophilic addition of X2
markovnikov's rule
isomer
8. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
hot - acidic potassium permanganate
basicity
achiral
acetaldehyde
9. Use the Greek root for the number of carbons followed by the ending - - ane
conformational isomer
Alkane nomenclature
relative configuration
ring strain
10. When bond angles deviate from ideal values
hybridization
chiral center
carboxylic acid
angle strain
11. Methyl are 60 degrees apart. kinda stable
electrophilic addition of HX
lindlar's catalyst
eclipsed conformation
gauche conformation
12. Results when cyclic molecules must assume conformations that have eclipsed interactions
C3H8 + 5O2 = 3CO2 + 4H2O + heat
torsional strain
diol
2^n
13. What are the best leaving groups?
weak bases
halogenation
ozonolysis
hybridization
14. Share molecular formula but have different chemical and physical properties
structural isomers
Alkene
ethers
electrophilic addition of X2
15. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
halogen
nucleophile
electrophilic addition of X2
pi bond
16. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
Alkane nomenclature
molecular orbital
electrophilic addition
polymerization
17. Most similar. same molecule only at different points in their rotation. show them with newmans projections
electrophilic addition of X2
ring flip
nonbonded strain
conformational isomer
18. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
electrophilic addition of HX
hydroboration
achiral
weak bases
19. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
C3H8 + 5O2 = 3CO2 + 4H2O + heat
peroxycarboxylic acid
electrophilic addition of H2O
geminal
20. Charged - need electrons
electrophile
ozonolysis
peroxycarboxylic acid
halogen
21. Non mirror image of configurational isomers. cis and trans alkenes are them. possible when a molecule has two or more stereogenic centers that differ at some but not alll of the centers. they require multiple chiral centers.
markovnikov's rule
quantum numbers
lindlar's catalyst
diastereomers
22. Name for propanal
racemic mixture
ring strain
propionaldehyde
Haloalkane
23. Name for mathanal
formaldehyde
stereoisomers
molecular orbital
sp3
24. One s and three p orbitals
sp3
y- root - en -x-yne
stereoisomers
markovnikov's rule
25. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
chiral
electrophilic addition
meso compound
aldehyde
26. Results when nonadjacent atoms or groups compete for space. dominant source of energy in flagpole interactions of the boat conformation. thus it goes in various conformations like chair boat and twist.
halogenation
formaldehyde
nonbonded strain
absolute configuration
27. One s and two p 120 degree apart
amines
sp2
markovnikov's rule
oxidation
28. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
electrophilic addition of free radicals
basicity
allyl
ozonolysis
29. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
mcpba
Alkyne
oxidizing
enantiomer
30. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
vicinal
enantiomer
Alkane
nucleophile
31. A molecule with an internal plane of symmetry
electrophilic addition of HX
meso compound
optical activity
carboxylic acid
32. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
triple bond
electrophilic addition of X2
y- root - en -x-yne
diol
33. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
racemic mixture
nucleophile
geometric isomers
electrophilic addition of free radicals
34. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
protic solvent
halogenation
hot - acidic potassium permanganate
triple bond
35. Highest energy no separation. or 120 separation.
structural isomers
electrophilic addition of free radicals
angle strain
eclipsed conformation
36. Occur when a molecule is broken down by heat. used to reduce the avverage molecular weight of heavy oils. c - c - bonds are cleave dand make small chain alkyl radicals that recombine to form different alkanes
pyrolysis
Ignored
disproportionation
lindlar's catalyst
37. Name for ethanal
acetaldehyde
chiral
enantiomer
saturated hydrocarbon
38. O3
oxidation
achiral
methylene
ozonolysis
39. Spatial arrangement of the atoms or groups of a sterioisomer
initiation propagation termination
configuration
nucleophile
y- root - en -x-yne
40. Alphabetical order of alkane rxn
formaldehyde
amines
protic solvent
combustion - disproportionation - free - radical substitution - pyrolysis
41. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
cold potassium permanganate
y- root - en -x-yne
angle strain
gauche conformation
42. F - CL - Br - I
angle strain
structural isomers
reducing
halogen
43. What is produced when o3 with lialh4 or nabh4
ozonolysis
carboxylic acid
acetaldehyde
alcohol
44. Arise from angle strain - torsional strian and nonbonded strain
ring strain
initiation propagation termination
markovnikov's rule
catalytic hydrogenation
45. A sigma bond and two pi bonds
triple bond
electrophilic addition of free radicals
peroxycarboxylic acid
hot - acidic potassium permanganate
46. Propylenes attached to a backbone at the C-3 position. Meaning the double bond at end of the chain and single bonded carbon at rest
triple bond
ozonolysis
allyl
propionaldehyde
47. A = observed rotation / concentration * length
covalent bond
enantiomer
specific rotation
2^n
48. Monosubstituted ethylene
stereoisomers
electrophilic addition
configuration
Vinyl
49. Compounds with halogen
ketone
relative configuration
propionaldehyde
Haloalkane
50. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
sp
ionic bond
Alkyne
structural isomers