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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. No double bonds. it has the maximum number of hydrogens.
carboxylic acid
sp2
saturated hydrocarbon
disproportionation
2. What is produced when o3 with lialh4 or nabh4
optical activity
alcohol
y- root - en -x-yne
quantum numbers
3. Diol with hydroxyl group on same carbon
amines
geminal
electrophilic addition of free radicals
Vinyl
4. Formed by mixing different types of orbitals
C3H8 + 5O2 = 3CO2 + 4H2O + heat
stereoisomers
aldehyde
hybridization
5. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
nucleophile
C3H8 + 5O2 = 3CO2 + 4H2O + heat
y- root - en -x-yne
Haloalkane
6. 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-
ethers
catalytic hydrogenation
amines
absolute configuration
7. Spatial arrangement of the atoms or groups of a sterioisomer
alcohol
polymerization
configuration
ethers
8. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
pyrolysis
basicity
propionaldehyde
9. Carbonyl located in middle or somewhere in chane. Named with One
sigma bond
ketone
amines
alkyne
10. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
enantiomer
achiral
basicity
reducing
11. When boat flips
carboxylic acid
sigma bond
ring flip
Ignored
12. N - l - ml - ms
oxidation
electrophilic addition of X2
quantum numbers
Combustion
13. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
Acetylene
disproportionation
alcohol
propionaldehyde
14. Same molecular formula but different structure
disproportionation
isomer
specific rotation
acetaldehyde
15. 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.
fischer projection
methylene
disproportionation
diastereomers
16. Di - tri - t - sec - n -
weak bases
ozonolysis
meso compound
Ignored
17. Arise from angle strain - torsional strian and nonbonded strain
nonbonded strain
Vinyl
ring strain
catalytic hydrogenation
18. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
pi bond
angle strain
geometric isomers
racemic mixture
19. Name for propanal
propionaldehyde
reducing
ethers
configuration
20. Sharing of electron between atoms
covalent bond
methylene
carbonyl
structural isomers
21. Common name for ethyne
amines
Acetylene
relative configuration
pyrolysis
22. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
halogenation
chiral center
propionaldehyde
oxidizing
23. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
carboxylic acid
angle strain
ring flip
24. Chain of carbons connected by single bonds with hydrogen atoms attached.
aprotic solvent
Alkane
electrophilic addition
torsional strain
25. How many stereoisomers can a molecule have with n chiral centers
initiation propagation termination
relative configuration
2^n
nonbonded strain
26. 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
hybridization
Haloalkane
oxidation
allyl
27. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
eclipsed conformation
sigma bond
peroxycarboxylic acid
electrophilic addition of H2O
28. Results when cyclic molecules must assume conformations that have eclipsed interactions
covalent bond
torsional strain
enantiomer
diastereomers
29. Transfer of electrions from one atome to another
acetaldehyde
vicinal
reducing
ionic bond
30. M - chloroperoxybenzoic acid
mcpba
ozonolysis
pi bond
aldehyde
31. One s and three p orbitals
sp3
Haloalkane
ring flip
protic solvent
32. Zn/h or CH3/s with ozonolysis
eclipsed conformation
ionic bond
reducing
allyl
33. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
diastereomers
ethers
specific rotation
polymerization
34. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
Alkane nomenclature
disproportionation
sp3
electrophilic addition of HX
35. Carbon carbon triple bonds. Suffix-yne.
electrophilic addition of free radicals
Alkyne
Haloalkane
reducing
36. When bond angles deviate from ideal values
angle strain
Combustion
ozonolysis
halogen
37. If reagent has a bunch of oxygen
molecular orbital
carboxylic acid
oxidation
hot - acidic potassium permanganate
38. Carbon double bonded to an oxygen
acetaldehyde
carbonyl
mcpba
electrophile
39. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
anti conformation
enantiomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
sp3
40. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
ionic bond
meso compound
aprotic solvent
aldehyde
41. Steps of free radical substitution
diastereomers
meso compound
specific rotation
initiation propagation termination
42. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
electrophilic addition
primary carbon
markovnikov's rule
formaldehyde
43. 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.
Alkane nomenclature
catalytic hydrogenation
electrophile
nonbonded strain
44. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
halogen
hydroboration
ozonolysis
acetaldehyde
45. Most similar. same molecule only at different points in their rotation. show them with newmans projections
racemic mixture
relative configuration
sp3
conformational isomer
46. F - CL - Br - I
halogen
sp2
fischer projection
2^n
47. Methyl are 60 degrees apart. kinda stable
catalytic hydrogenation
carbonyl
gauche conformation
geometric isomers
48. Iso - neo - cyclo
basicity
carbonyl
absolute configuration
not ignored
49. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
catalytic hydrogenation
weak bases
specific rotation
halogenation
50. What are the best leaving groups?
weak bases
vicinal
pi bond
initiation propagation termination