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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. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
polymerization
ethers
alkyne
ozonolysis
2. Compounds with halogen
Haloalkane
alkyne
Alkane nomenclature
relative configuration
3. Name for mathanal
formaldehyde
absolute configuration
chiral center
hydroboration
4. Diol with hydroxyl group on same carbon
geminal
oxidizing
hydroboration
acetaldehyde
5. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
hydroboration
relative configuration
geometric isomers
meso compound
6. Transfer of electrions from one atome to another
ionic bond
halogenation
acetaldehyde
lindlar's catalyst
7. Most similar. same molecule only at different points in their rotation. show them with newmans projections
ring flip
electrophilic addition of H2O
fischer projection
conformational isomer
8. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
Alkene
fischer projection
geometric isomers
y- root - en -x-yne
9. F - CL - Br - I
quantum numbers
halogen
configuration
reducing
10. Monosubstituted ethylene
mcpba
basicity
Vinyl
electrophile
11. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
polymerization
y- root - en -x-yne
nonbonded strain
formaldehyde
12. Most favorable of staggared conformations
anti conformation
electrophilic addition
fischer projection
covalent bond
13. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
14. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
meso compound
pi bond
Vinyl
15. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
ketone
ethers
markovnikov's rule
oxidizing
16. 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
Alkane nomenclature
enantiomer
configuration
hot - acidic potassium permanganate
17. Lowest priority group projects into the page
Alkyne
formaldehyde
ozonolysis
fischer projection
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
hydroboration
markovnikov's rule
ring strain
achiral
19. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
chiral center
aprotic solvent
methylene
20. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
nonbonded strain
cold potassium permanganate
propionaldehyde
eclipsed conformation
21. Diols with hydroxyl group on adjacent carbon
sp3
vicinal
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ring strain
22. Alphabetical order of alkane rxn
basicity
saturated hydrocarbon
combustion - disproportionation - free - radical substitution - pyrolysis
ozonolysis
23. 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.
molecular orbital
carboxylic acid
conformational isomer
Ignored
24. Carbon with four different substituents and lack a plane of symmetry
chiral center
enantiomer
ketone
electrophilic addition of HX
25. Kmno4
meso compound
y- root - en -x-yne
pi bond
potassium permanganate
26. Share molecular formula but have different chemical and physical properties
structural isomers
enantiomer
ionic bond
racemic mixture
27. 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-
quantum numbers
amines
meso compound
formaldehyde
28. 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
racemic mixture
electrophilic addition of H2O
nonbonded strain
allyl
29. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
basicity
electrophilic addition
hot - acidic potassium permanganate
weak bases
30. 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
electrophilic addition
catalytic hydrogenation
potassium permanganate
chiral
31. Nucleus lover. electron rich species that are attracked to charged atoms
disproportionation
Haloalkane
triple bond
nucleophile
32. Methyl are 60 degrees apart. kinda stable
hybridization
gauche conformation
triple bond
absolute configuration
33. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
specific rotation
disproportionation
Ignored
ozonolysis
34. How many stereoisomers can a molecule have with n chiral centers
triple bond
stereoisomers
2^n
quantum numbers
35. Steps of free radical substitution
initiation propagation termination
racemic mixture
catalytic hydrogenation
ketone
36. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
molecular orbital
basicity
Haloalkane
hydroboration
37. Results when cyclic molecules must assume conformations that have eclipsed interactions
torsional strain
triple bond
basicity
electrophilic addition of H2O
38. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
protic solvent
carboxylic acid
absolute configuration
ethers
39. Common name for ethyne
Alkene
Acetylene
quantum numbers
eclipsed conformation
40. If a compound is able to rotate plane polarized light.
optical activity
lindlar's catalyst
2^n
halogen
41. Two hydroxyl groups
electrophilic addition of H2O
meso compound
diol
electrophilic addition
42. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sp3
electrophilic addition of X2
hot - acidic potassium permanganate
sigma bond
43. What are the best leaving groups?
hot - acidic potassium permanganate
C3H8 + 5O2 = 3CO2 + 4H2O + heat
conformational isomer
weak bases
44. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
vicinal
primary carbon
hot - acidic potassium permanganate
Haloalkane
45. Carbon carbon triple bonds. Suffix-yne.
not ignored
nonbonded strain
covalent bond
Alkyne
46. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
diol
Haloalkane
Acetylene
stereoisomers
47. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
aprotic solvent
enantiomer
fischer projection
hydroboration
48. Carbon double bonded to an oxygen
alkyne
racemic mixture
combustion - disproportionation - free - radical substitution - pyrolysis
carbonyl
49. Goal is to produce most stable carbocation
50. Di - tri - t - sec - n -
pi bond
Haloalkane
mcpba
Ignored