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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. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
Acetylene
mcpba
ring strain
electrophilic addition of H2O
2. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
hybridization
gauche conformation
cold potassium permanganate
chiral center
3. 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
geminal
Vinyl
initiation propagation termination
4. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
weak bases
nucleophile
achiral
5. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
disproportionation
enantiomer
polymerization
achiral
6. Carbon double bonded to an oxygen
primary carbon
ozonolysis
disproportionation
carbonyl
7. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
markovnikov's rule
eclipsed conformation
vicinal
absolute configuration
8. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
carboxylic acid
racemic mixture
ring flip
methylene
9. Results when cyclic molecules must assume conformations that have eclipsed interactions
torsional strain
nonbonded strain
ring strain
structural isomers
10. Refers to the =CH2 group
electrophilic addition of free radicals
achiral
methylene
triple bond
11. A = observed rotation / concentration * length
halogen
potassium permanganate
isomer
specific rotation
12. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
ozonolysis
geminal
Combustion
Alkene
13. Name for propanal
hybridization
Haloalkane
meso compound
propionaldehyde
14. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
configuration
electrophilic addition of H2O
electrophilic addition of free radicals
triple bond
15. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
Haloalkane
ozonolysis
chiral
halogenation
16. Steps of free radical substitution
stereoisomers
initiation propagation termination
chiral center
peroxycarboxylic acid
17. If reagent has a bunch of oxygen
Alkane
oxidation
polymerization
pi bond
18. F - CL - Br - I
Haloalkane
halogen
stereoisomers
hot - acidic potassium permanganate
19. Carbon with four different substituents and lack a plane of symmetry
geminal
chiral center
peroxycarboxylic acid
aldehyde
20. Is bonded to only one other carbon atom
hydroboration
saturated hydrocarbon
hybridization
primary carbon
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-
nonbonded strain
Vinyl
amines
Ignored
22. Carbon carbon triple bonds. Suffix-yne.
lindlar's catalyst
hot - acidic potassium permanganate
Alkyne
hydroboration
23. Diol with hydroxyl group on same carbon
geminal
lindlar's catalyst
conformational isomer
aldehyde
24. Monosubstituted ethylene
electrophilic addition of HX
Vinyl
Alkyne
C3H8 + 5O2 = 3CO2 + 4H2O + heat
25. Highest energy no separation. or 120 separation.
potassium permanganate
hydroboration
eclipsed conformation
Ignored
26. M - chloroperoxybenzoic acid
mcpba
carboxylic acid
catalytic hydrogenation
quantum numbers
27. N - l - ml - ms
Ignored
quantum numbers
electrophilic addition of HX
nucleophile
28. If a compound is able to rotate plane polarized light.
fischer projection
primary carbon
optical activity
carboxylic acid
29. Formed by mixing different types of orbitals
stereoisomers
nonbonded strain
relative configuration
hybridization
30. Lowest priority group projects into the page
aprotic solvent
Ignored
fischer projection
torsional strain
31. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
structural isomers
Alkyne
protic solvent
32. Charged - need electrons
Ignored
structural isomers
electrophile
allyl
33. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
amines
achiral
acetaldehyde
aldehyde
34. 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
vicinal
relative configuration
not ignored
allyl
35. Occur when a molecule is broken down by heat. used to reduce the avverage molecular weight of heavy oils. c - c - bonds are cleave dand make small chain alkyl radicals that recombine to form different alkanes
polymerization
ozonolysis
nonbonded strain
pyrolysis
36. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
alkyne
enantiomer
geometric isomers
y- root - en -x-yne
37. What is produced when o3 with lialh4 or nabh4
carboxylic acid
carbonyl
alcohol
Alkane nomenclature
38. Diols with hydroxyl group on adjacent carbon
mcpba
oxidation
vicinal
specific rotation
39. Goal is to produce most stable carbocation
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40. A molecule with an internal plane of symmetry
basicity
not ignored
meso compound
C3H8 + 5O2 = 3CO2 + 4H2O + heat
41. 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
racemic mixture
enantiomer
markovnikov's rule
covalent bond
42. Methyl are 60 degrees apart. kinda stable
meso compound
methylene
sp
gauche conformation
43. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
electrophilic addition of HX
carbonyl
hot - acidic potassium permanganate
vicinal
44. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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45. Object that is not superimposable upon mirror image
isomer
chiral
molecular orbital
ethers
46. Chain of carbons connected by single bonds with hydrogen atoms attached.
configuration
combustion - disproportionation - free - radical substitution - pyrolysis
Alkane
lindlar's catalyst
47. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
protic solvent
ketone
vicinal
peroxycarboxylic acid
48. Zn/h or CH3/s with ozonolysis
Combustion
torsional strain
allyl
reducing
49. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
torsional strain
diastereomers
electrophilic addition of free radicals
50. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
isomer
enantiomer
carboxylic acid
protic solvent