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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. Lowest priority group projects into the page
achiral
sp2
fischer projection
weak bases
2. Most favorable of staggared conformations
achiral
electrophilic addition of H2O
anti conformation
potassium permanganate
3. Compounds with halogen
quantum numbers
Haloalkane
ozonolysis
geminal
4. If a compound is able to rotate plane polarized light.
chiral
triple bond
optical activity
sp2
5. 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
hybridization
Alkane nomenclature
protic solvent
chiral
6. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
formaldehyde
peroxycarboxylic acid
markovnikov's rule
conformational isomer
7. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
covalent bond
y- root - en -x-yne
Ignored
8. No double bonds. it has the maximum number of hydrogens.
chiral
saturated hydrocarbon
stereoisomers
electrophilic addition
9. F - CL - Br - I
halogen
combustion - disproportionation - free - radical substitution - pyrolysis
anti conformation
formaldehyde
10. One s and three p orbitals
electrophilic addition of H2O
mcpba
sp3
electrophilic addition of HX
11. One s and two p 120 degree apart
Alkane
sp2
2^n
Ignored
12. Carbon carbon triple bonds. Suffix-yne.
Alkyne
covalent bond
not ignored
aldehyde
13. Transfer of electrions from one atome to another
acetaldehyde
mcpba
ionic bond
absolute configuration
14. Methyl are 60 degrees apart. kinda stable
acetaldehyde
gauche conformation
allyl
hot - acidic potassium permanganate
15. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
diastereomers
molecular orbital
enantiomer
geometric isomers
16. Arise from angle strain - torsional strian and nonbonded strain
fischer projection
ring strain
carbonyl
acetaldehyde
17. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
meso compound
carboxylic acid
nonbonded strain
18. Spatial arrangement of the atoms or groups of a sterioisomer
configuration
Ignored
angle strain
potassium permanganate
19. 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
electrophilic addition of H2O
lindlar's catalyst
Haloalkane
enantiomer
20. Object that is not superimposable upon mirror image
mcpba
structural isomers
weak bases
chiral
21. 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-
ionic bond
ozonolysis
quantum numbers
amines
22. 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
halogen
geminal
23. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
torsional strain
initiation propagation termination
Alkyne
absolute configuration
24. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
not ignored
sp
nonbonded strain
Alkane
25. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
sigma bond
ethers
nucleophile
pi bond
26. Combustion reaction occurs through a radical process
angle strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
aprotic solvent
not ignored
27. Name for ethanal
basicity
acetaldehyde
geometric isomers
meso compound
28. Two hydroxyl groups
geminal
specific rotation
diol
alcohol
29. Use the Greek root for the number of carbons followed by the ending - - ane
electrophilic addition
Alkane nomenclature
ring strain
propionaldehyde
30. Hydrocarbon with one or more carbon carbon triple bond
enantiomer
alkyne
electrophilic addition of H2O
sp2
31. 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.
covalent bond
molecular orbital
C3H8 + 5O2 = 3CO2 + 4H2O + heat
Haloalkane
32. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
propionaldehyde
anti conformation
conformational isomer
ozonolysis
33. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
acetaldehyde
amines
meso compound
34. What are the best leaving groups?
mcpba
Acetylene
weak bases
oxidizing
35. Diols with hydroxyl group on adjacent carbon
acetaldehyde
nonbonded strain
vicinal
alcohol
36. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
carboxylic acid
electrophilic addition of X2
geometric isomers
molecular orbital
37. Monosubstituted ethylene
fischer projection
Vinyl
geometric isomers
chiral center
38. Iso - neo - cyclo
sp2
cold potassium permanganate
basicity
not ignored
39. Results when cyclic molecules must assume conformations that have eclipsed interactions
sigma bond
formaldehyde
alcohol
torsional strain
40. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
41. Sharing of electron between atoms
ozonolysis
covalent bond
Alkane nomenclature
Haloalkane
42. Di - tri - t - sec - n -
geminal
peroxycarboxylic acid
Ignored
acetaldehyde
43. Carbon with four different substituents and lack a plane of symmetry
diol
chiral center
geminal
aldehyde
44. 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.
conformational isomer
diastereomers
structural isomers
catalytic hydrogenation
45. Name for mathanal
formaldehyde
Acetylene
lindlar's catalyst
alkyne
46. A = observed rotation / concentration * length
specific rotation
Alkane
halogen
electrophilic addition
47. Nucleus lover. electron rich species that are attracked to charged atoms
nucleophile
aprotic solvent
hydroboration
hybridization
48. Is bonded to only one other carbon atom
specific rotation
primary carbon
markovnikov's rule
Acetylene
49. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
conformational isomer
vicinal
Combustion
oxidizing
50. Goal is to produce most stable carbocation