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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. Zn/h or CH3/s with ozonolysis
propionaldehyde
protic solvent
reducing
Ignored
2. Is bonded to only one other carbon atom
primary carbon
diol
electrophilic addition of HX
Vinyl
3. 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-
not ignored
amines
sp3
gauche conformation
4. What are the best leaving groups?
weak bases
torsional strain
electrophilic addition of HX
initiation propagation termination
5. A = observed rotation / concentration * length
Alkene
lindlar's catalyst
specific rotation
ketone
6. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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7. Share molecular formula but have different chemical and physical properties
structural isomers
triple bond
optical activity
methylene
8. If a compound is able to rotate plane polarized light.
optical activity
electrophile
potassium permanganate
sp3
9. Methyl are 60 degrees apart. kinda stable
nonbonded strain
sp3
aprotic solvent
gauche conformation
10. Chain of carbons connected by single bonds with hydrogen atoms attached.
ionic bond
eclipsed conformation
Alkane
catalytic hydrogenation
11. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
electrophilic addition of X2
Combustion
hybridization
anti conformation
12. Goal is to produce most stable carbocation
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13. Name for ethanal
methylene
acetaldehyde
disproportionation
geometric isomers
14. 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
configuration
cold potassium permanganate
enantiomer
chiral
15. Arise from angle strain - torsional strian and nonbonded strain
oxidation
ring strain
chiral
fischer projection
16. Carbon carbon triple bonds. Suffix-yne.
chiral center
ring strain
Alkyne
diastereomers
17. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
electrophile
achiral
ozonolysis
potassium permanganate
18. Diols with hydroxyl group on adjacent carbon
vicinal
halogenation
propionaldehyde
aprotic solvent
19. Refers to the =CH2 group
initiation propagation termination
ozonolysis
cold potassium permanganate
methylene
20. Same molecular formula but different structure
electrophilic addition of H2O
conformational isomer
isomer
amines
21. Transfer of electrions from one atome to another
sp2
aprotic solvent
ionic bond
electrophilic addition of free radicals
22. Compounds with halogen
lindlar's catalyst
triple bond
conformational isomer
Haloalkane
23. Most favorable of staggared conformations
aprotic solvent
nonbonded strain
anti conformation
optical activity
24. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
eclipsed conformation
gauche conformation
electrophilic addition
25. Common name for ethyne
Acetylene
oxidizing
hybridization
Alkane
26. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
relative configuration
electrophilic addition of X2
Alkane nomenclature
aprotic solvent
27. Formed by mixing different types of orbitals
formaldehyde
nucleophile
diol
hybridization
28. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
Alkyne
Alkene
fischer projection
electrophilic addition of H2O
29. 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
propionaldehyde
carbonyl
potassium permanganate
30. O3
electrophilic addition
ozonolysis
sp2
geminal
31. Most similar. same molecule only at different points in their rotation. show them with newmans projections
not ignored
specific rotation
conformational isomer
enantiomer
32. Hydrocarbon with one or more carbon carbon triple bond
polymerization
electrophilic addition
aldehyde
alkyne
33. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
angle strain
sigma bond
Vinyl
saturated hydrocarbon
34. Di - tri - t - sec - n -
Ignored
hot - acidic potassium permanganate
electrophilic addition
racemic mixture
35. If reagent has a bunch of oxygen
oxidation
Haloalkane
Alkane nomenclature
polymerization
36. What is produced when o3 with lialh4 or nabh4
disproportionation
carboxylic acid
alcohol
vicinal
37. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
Haloalkane
configuration
absolute configuration
enantiomer
38. N - l - ml - ms
carboxylic acid
vicinal
quantum numbers
saturated hydrocarbon
39. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
specific rotation
geometric isomers
disproportionation
Alkane nomenclature
40. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
saturated hydrocarbon
electrophilic addition of HX
basicity
aldehyde
41. Results when cyclic molecules must assume conformations that have eclipsed interactions
pi bond
torsional strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
carbonyl
42. Alphabetical order of alkane rxn
potassium permanganate
combustion - disproportionation - free - radical substitution - pyrolysis
Acetylene
C3H8 + 5O2 = 3CO2 + 4H2O + heat
43. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
alkyne
Acetylene
halogenation
pyrolysis
44. Carbonyl located in middle or somewhere in chane. Named with One
methylene
electrophilic addition of free radicals
isomer
ketone
45. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
electrophilic addition of free radicals
methylene
electrophile
achiral
46. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
enantiomer
absolute configuration
quantum numbers
carbonyl
47. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
polymerization
diastereomers
y- root - en -x-yne
cold potassium permanganate
48. Charged - need electrons
acetaldehyde
enantiomer
vicinal
electrophile
49. Spatial arrangement of the atoms or groups of a sterioisomer
hot - acidic potassium permanganate
sp2
configuration
primary carbon
50. 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
mcpba
peroxycarboxylic acid
quantum numbers