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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. N - l - ml - ms
stereoisomers
quantum numbers
covalent bond
pyrolysis
2. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
stereoisomers
ozonolysis
carbonyl
combustion - disproportionation - free - radical substitution - pyrolysis
3. One s and three p orbitals
saturated hydrocarbon
hot - acidic potassium permanganate
sp3
achiral
4. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
hot - acidic potassium permanganate
peroxycarboxylic acid
diastereomers
diol
5. Nitrogen containing compound - longest chain attached to nitrogen used in backbone. use e and replace with AMINE. if more complex molecule present - use prefix amino. IF additional group added - use N-
C3H8 + 5O2 = 3CO2 + 4H2O + heat
stereoisomers
ring strain
amines
6. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
relative configuration
methylene
weak bases
lindlar's catalyst
7. Name for ethanal
peroxycarboxylic acid
potassium permanganate
electrophilic addition of HX
acetaldehyde
8. How many stereoisomers can a molecule have with n chiral centers
2^n
relative configuration
allyl
polymerization
9. M - chloroperoxybenzoic acid
methylene
covalent bond
conformational isomer
mcpba
10. When boat flips
optical activity
achiral
ring flip
Alkane nomenclature
11. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
polymerization
Ignored
oxidizing
relative configuration
12. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
chiral
ozonolysis
Combustion
ionic bond
13. 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.
nonbonded strain
hybridization
stereoisomers
reducing
14. Compounds with halogen
Haloalkane
lindlar's catalyst
saturated hydrocarbon
Acetylene
15. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
acetaldehyde
y- root - en -x-yne
polymerization
initiation propagation termination
16. Name for propanal
geminal
racemic mixture
propionaldehyde
Acetylene
17. When bond angles deviate from ideal values
lindlar's catalyst
alkyne
angle strain
enantiomer
18. Hydrocarbon with one or more carbon carbon triple bond
molecular orbital
alkyne
2^n
aldehyde
19. Carbon carbon triple bonds. Suffix-yne.
angle strain
markovnikov's rule
weak bases
Alkyne
20. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
C3H8 + 5O2 = 3CO2 + 4H2O + heat
aldehyde
specific rotation
triple bond
21. A sigma bond and two pi bonds
triple bond
quantum numbers
amines
nonbonded strain
22. Share molecular formula but have different chemical and physical properties
markovnikov's rule
sp2
mcpba
structural isomers
23. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
mcpba
hydroboration
enantiomer
weak bases
24. O3
geminal
nonbonded strain
ozonolysis
electrophilic addition of X2
25. F - CL - Br - I
geometric isomers
quantum numbers
sp3
halogen
26. Lowest priority group projects into the page
triple bond
halogen
allyl
fischer projection
27. What are the best leaving groups?
electrophilic addition of H2O
weak bases
pi bond
alcohol
28. No double bonds. it has the maximum number of hydrogens.
C3H8 + 5O2 = 3CO2 + 4H2O + heat
meso compound
saturated hydrocarbon
amines
29. Monosubstituted ethylene
Vinyl
sp2
ionic bond
fischer projection
30. Functionality is specified by alkoxy- prefix. ROR
allyl
protic solvent
ethers
initiation propagation termination
31. Most similar. same molecule only at different points in their rotation. show them with newmans projections
Haloalkane
Alkane nomenclature
torsional strain
conformational isomer
32. Steps of free radical substitution
sp2
sp3
initiation propagation termination
lindlar's catalyst
33. Methyl are 60 degrees apart. kinda stable
peroxycarboxylic acid
fischer projection
saturated hydrocarbon
gauche conformation
34. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
chiral
electrophilic addition
relative configuration
methylene
35. When two atomic orbitals combine. obtained mathematically by adding or subtracting wave functions. if sings are the same - make bonding - if different - less stable antibonding.
configuration
molecular orbital
catalytic hydrogenation
fischer projection
36. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
carboxylic acid
diastereomers
peroxycarboxylic acid
acetaldehyde
37. Carbon double bonded to an oxygen
ketone
vicinal
carbonyl
pyrolysis
38. One s and two p 120 degree apart
Combustion
sigma bond
ozonolysis
sp2
39. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
Alkyne
enantiomer
stereoisomers
reducing
40. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
pyrolysis
ethers
oxidizing
polymerization
41. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
chiral center
formaldehyde
protic solvent
peroxycarboxylic acid
42. Arise from angle strain - torsional strian and nonbonded strain
oxidation
halogen
y- root - en -x-yne
ring strain
43. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
hybridization
electrophilic addition of H2O
catalytic hydrogenation
Alkene
44. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
halogen
triple bond
basicity
ozonolysis
45. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
primary carbon
conformational isomer
absolute configuration
gauche conformation
46. A = observed rotation / concentration * length
ring strain
specific rotation
quantum numbers
not ignored
47. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
relative configuration
weak bases
halogenation
molecular orbital
48. Not solvated
catalytic hydrogenation
aprotic solvent
chiral center
sigma bond
49. Results when cyclic molecules must assume conformations that have eclipsed interactions
diastereomers
enantiomer
nucleophile
torsional strain
50. Charged - need electrons
molecular orbital
Alkene
electrophile
structural isomers