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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. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
polymerization
relative configuration
racemic mixture
Ignored
2. N - l - ml - ms
alkyne
ethers
aldehyde
quantum numbers
3. Not solvated
markovnikov's rule
primary carbon
aprotic solvent
carboxylic acid
4. Carbon double bonded to an oxygen
carbonyl
propionaldehyde
halogenation
torsional strain
5. Charged - need electrons
hydroboration
torsional strain
allyl
electrophile
6. Zn/h or CH3/s with ozonolysis
anti conformation
reducing
acetaldehyde
specific rotation
7. Diol with hydroxyl group on same carbon
electrophilic addition of H2O
cold potassium permanganate
peroxycarboxylic acid
geminal
8. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
mcpba
sp
geminal
absolute configuration
9. Alphabetical order of alkane rxn
sigma bond
combustion - disproportionation - free - radical substitution - pyrolysis
allyl
geminal
10. 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
combustion - disproportionation - free - radical substitution - pyrolysis
pyrolysis
conformational isomer
ethers
11. Spatial arrangement of the atoms or groups of a sterioisomer
eclipsed conformation
configuration
carbonyl
combustion - disproportionation - free - radical substitution - pyrolysis
12. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of HX
electrophilic addition of H2O
meso compound
pyrolysis
13. Name for ethanal
protic solvent
acetaldehyde
angle strain
achiral
14. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
combustion - disproportionation - free - radical substitution - pyrolysis
conformational isomer
potassium permanganate
15. 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.
chiral center
amines
nonbonded strain
polymerization
16. Transfer of electrions from one atome to another
oxidizing
torsional strain
anti conformation
ionic bond
17. 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
Acetylene
quantum numbers
configuration
allyl
18. Refers to the =CH2 group
C3H8 + 5O2 = 3CO2 + 4H2O + heat
lindlar's catalyst
methylene
chiral center
19. Same molecular formula but different structure
configuration
meso compound
isomer
ionic bond
20. Compounds with halogen
potassium permanganate
electrophile
oxidizing
Haloalkane
21. Goal is to produce most stable carbocation
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22. Monosubstituted ethylene
y- root - en -x-yne
chiral center
Vinyl
electrophilic addition of free radicals
23. Use the Greek root for the number of carbons followed by the ending - - ane
Alkane nomenclature
sp
hydroboration
peroxycarboxylic acid
24. Diols with hydroxyl group on adjacent carbon
formaldehyde
vicinal
ring flip
fischer projection
25. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
polymerization
hydroboration
electrophilic addition
y- root - en -x-yne
26. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
absolute configuration
carboxylic acid
diastereomers
methylene
27. Di - tri - t - sec - n -
Alkane nomenclature
eclipsed conformation
diol
Ignored
28. Reducing an alkene by adding molecular hydrogen to double bond with aid of metal catalyst. e.g. pt - pd - ni. takes place on surface of metal so it does syn addition
pyrolysis
alkyne
catalytic hydrogenation
Alkane
29. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
hot - acidic potassium permanganate
formaldehyde
chiral center
30. No double bonds. it has the maximum number of hydrogens.
electrophilic addition of free radicals
saturated hydrocarbon
Alkane nomenclature
absolute configuration
31. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
peroxycarboxylic acid
Alkene
structural isomers
initiation propagation termination
32. One s and two p 120 degree apart
torsional strain
sp
angle strain
sp2
33. If reagent has a bunch of oxygen
specific rotation
oxidation
isomer
covalent bond
34. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
halogenation
lindlar's catalyst
ionic bond
ring flip
35. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
alcohol
electrophilic addition of HX
ring strain
anti conformation
36. Two hydroxyl groups
C3H8 + 5O2 = 3CO2 + 4H2O + heat
achiral
alcohol
diol
37. Combustion reaction occurs through a radical process
electrophile
C3H8 + 5O2 = 3CO2 + 4H2O + heat
initiation propagation termination
disproportionation
38. Share molecular formula but have different chemical and physical properties
ring strain
structural isomers
pi bond
geometric isomers
39. Arise from angle strain - torsional strian and nonbonded strain
molecular orbital
pyrolysis
triple bond
ring strain
40. A sigma bond and two pi bonds
aprotic solvent
allyl
triple bond
configuration
41. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
Haloalkane
ozonolysis
geometric isomers
chiral center
42. Formed by mixing different types of orbitals
fischer projection
hybridization
carbonyl
ionic bond
43. Nucleus lover. electron rich species that are attracked to charged atoms
nucleophile
pyrolysis
structural isomers
relative configuration
44. What are the best leaving groups?
C3H8 + 5O2 = 3CO2 + 4H2O + heat
weak bases
diol
chiral center
45. Carbon carbon triple bonds. Suffix-yne.
Alkyne
mcpba
formaldehyde
optical activity
46. If a compound is able to rotate plane polarized light.
structural isomers
vicinal
optical activity
acetaldehyde
47. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
diol
hybridization
nonbonded strain
y- root - en -x-yne
48. Is bonded to only one other carbon atom
aprotic solvent
gauche conformation
2^n
primary carbon
49. 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.
diastereomers
halogenation
relative configuration
chiral
50. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
sp2
peroxycarboxylic acid
anti conformation
enantiomer