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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. Refers to the =CH2 group
methylene
oxidizing
aprotic solvent
disproportionation
2. Nucleus lover. electron rich species that are attracked to charged atoms
saturated hydrocarbon
nucleophile
hybridization
catalytic hydrogenation
3. Carbonyl located in middle or somewhere in chane. Named with One
potassium permanganate
ketone
markovnikov's rule
not ignored
4. Name for ethanal
Combustion
electrophile
acetaldehyde
saturated hydrocarbon
5. If a compound is able to rotate plane polarized light.
optical activity
alkyne
vicinal
halogenation
6. One s and two p 120 degree apart
electrophilic addition of HX
sp2
ozonolysis
Vinyl
7. Carbon carbon triple bonds. Suffix-yne.
electrophilic addition of free radicals
isomer
pi bond
Alkyne
8. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
relative configuration
configuration
hydroboration
ionic bond
9. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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10. What are the best leaving groups?
halogen
amines
reducing
weak bases
11. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
vicinal
alcohol
methylene
electrophilic addition of free radicals
12. Formed by mixing different types of orbitals
electrophilic addition of free radicals
ring flip
Alkane nomenclature
hybridization
13. What is produced when o3 with lialh4 or nabh4
alcohol
ring flip
Alkyne
electrophilic addition of X2
14. Alphabetical order of alkane rxn
polymerization
Alkane
isomer
combustion - disproportionation - free - radical substitution - pyrolysis
15. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
oxidation
enantiomer
hydroboration
carboxylic acid
16. 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-
basicity
aprotic solvent
racemic mixture
amines
17. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable
protic solvent
hot - acidic potassium permanganate
covalent bond
optical activity
18. Most similar. same molecule only at different points in their rotation. show them with newmans projections
hybridization
disproportionation
conformational isomer
allyl
19. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
electrophilic addition
propionaldehyde
sp
enantiomer
20. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
Alkene
configuration
anti conformation
electrophilic addition of X2
21. Same molecular formula but different structure
angle strain
anti conformation
isomer
ethers
22. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
Alkane
Combustion
relative configuration
molecular orbital
23. No double bonds. it has the maximum number of hydrogens.
racemic mixture
saturated hydrocarbon
diastereomers
allyl
24. Steps of free radical substitution
electrophilic addition
acetaldehyde
initiation propagation termination
ring strain
25. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
not ignored
halogenation
polymerization
molecular orbital
26. Zn/h or CH3/s with ozonolysis
reducing
carbonyl
electrophilic addition
ring flip
27. 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.
ozonolysis
nonbonded strain
y- root - en -x-yne
aldehyde
28. When boat flips
conformational isomer
ring flip
achiral
meso compound
29. Kmno4
racemic mixture
ring flip
potassium permanganate
basicity
30. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
allyl
aldehyde
primary carbon
potassium permanganate
31. One s and three p orbitals
sp3
vicinal
y- root - en -x-yne
acetaldehyde
32. Combustion reaction occurs through a radical process
electrophilic addition of H2O
ozonolysis
aprotic solvent
C3H8 + 5O2 = 3CO2 + 4H2O + heat
33. How many stereoisomers can a molecule have with n chiral centers
reducing
vicinal
lindlar's catalyst
2^n
34. O3
ozonolysis
ketone
nonbonded strain
electrophilic addition of free radicals
35. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
peroxycarboxylic acid
propionaldehyde
y- root - en -x-yne
ketone
36. Common name for ethyne
absolute configuration
enantiomer
geometric isomers
Acetylene
37. Monosubstituted ethylene
primary carbon
enantiomer
aldehyde
Vinyl
38. 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
not ignored
protic solvent
catalytic hydrogenation
lindlar's catalyst
39. If reagent has a bunch of oxygen
oxidation
triple bond
relative configuration
catalytic hydrogenation
40. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
y- root - en -x-yne
Acetylene
achiral
cold potassium permanganate
41. Functionality is specified by alkoxy- prefix. ROR
pi bond
initiation propagation termination
ethers
triple bond
42. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
diastereomers
meso compound
electrophilic addition
acetaldehyde
43. A = observed rotation / concentration * length
specific rotation
alkyne
diol
2^n
44. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
combustion - disproportionation - free - radical substitution - pyrolysis
ozonolysis
electrophile
45. Two hydroxyl groups
nucleophile
acetaldehyde
diol
aldehyde
46. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
Combustion
Alkane nomenclature
fischer projection
achiral
47. Methyl are 60 degrees apart. kinda stable
catalytic hydrogenation
electrophilic addition of H2O
gauche conformation
disproportionation
48. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
carboxylic acid
geometric isomers
reducing
racemic mixture
49. Arise from angle strain - torsional strian and nonbonded strain
ozonolysis
propionaldehyde
ring strain
allyl
50. Spatial arrangement of the atoms or groups of a sterioisomer
not ignored
hot - acidic potassium permanganate
configuration
absolute configuration