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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. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
triple bond
Alkane
mcpba
ozonolysis
2. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ring strain
isomer
3. Refers to the =CH2 group
stereoisomers
anti conformation
triple bond
methylene
4. Highest energy no separation. or 120 separation.
eclipsed conformation
carbonyl
disproportionation
Acetylene
5. Zn/h or CH3/s with ozonolysis
quantum numbers
Alkane nomenclature
alkyne
reducing
6. Carbon with four different substituents and lack a plane of symmetry
chiral center
cold potassium permanganate
potassium permanganate
absolute configuration
7. If reagent has a bunch of oxygen
chiral center
triple bond
optical activity
oxidation
8. Not solvated
ring strain
aprotic solvent
vicinal
aldehyde
9. F - CL - Br - I
carboxylic acid
cold potassium permanganate
halogen
ionic bond
10. One s and two p 120 degree apart
conformational isomer
configuration
sp2
Vinyl
11. Same molecular formula but different structure
anti conformation
reducing
isomer
weak bases
12. Carbon double bonded to an oxygen
ring flip
ring strain
isomer
carbonyl
13. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
enantiomer
Alkane
electrophilic addition
peroxycarboxylic acid
14. 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
eclipsed conformation
configuration
mcpba
allyl
15. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
combustion - disproportionation - free - radical substitution - pyrolysis
vicinal
achiral
ring flip
16. Diol with hydroxyl group on same carbon
ketone
disproportionation
geminal
alcohol
17. Diols with hydroxyl group on adjacent carbon
C3H8 + 5O2 = 3CO2 + 4H2O + heat
eclipsed conformation
nucleophile
vicinal
18. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
optical activity
oxidation
y- root - en -x-yne
peroxycarboxylic acid
19. Spatial arrangement of the atoms or groups of a sterioisomer
peroxycarboxylic acid
catalytic hydrogenation
nonbonded strain
configuration
20. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
sp2
electrophilic addition
electrophilic addition of HX
hybridization
21. Is bonded to only one other carbon atom
electrophile
primary carbon
electrophilic addition of H2O
halogen
22. 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
structural isomers
protic solvent
Vinyl
mcpba
23. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
chiral center
stereoisomers
2^n
electrophilic addition
24. Monosubstituted ethylene
electrophilic addition of X2
pi bond
angle strain
Vinyl
25. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
quantum numbers
electrophilic addition of X2
halogenation
electrophilic addition of free radicals
26. What is produced when o3 with lialh4 or nabh4
Ignored
methylene
potassium permanganate
alcohol
27. Sharing of electron between atoms
eclipsed conformation
covalent bond
halogen
y- root - en -x-yne
28. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
oxidation
halogen
halogenation
disproportionation
29. Rotations cancel each other out therefore no optical activity
specific rotation
meso compound
racemic mixture
conformational isomer
30. 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.
acetaldehyde
torsional strain
nonbonded strain
basicity
31. Transfer of electrions from one atome to another
Ignored
mcpba
electrophile
ionic bond
32. Name for propanal
ring flip
ozonolysis
basicity
propionaldehyde
33. Functionality is specified by alkoxy- prefix. ROR
specific rotation
nucleophile
ethers
basicity
34. If a compound is able to rotate plane polarized light.
optical activity
electrophilic addition of H2O
pyrolysis
sp3
35. Most similar. same molecule only at different points in their rotation. show them with newmans projections
structural isomers
stereoisomers
hydroboration
conformational isomer
36. Chain of carbons connected by single bonds with hydrogen atoms attached.
Acetylene
Ignored
Alkane
Haloalkane
37. Results when cyclic molecules must assume conformations that have eclipsed interactions
relative configuration
torsional strain
enantiomer
chiral center
38. O3
ozonolysis
halogenation
primary carbon
Acetylene
39. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
C3H8 + 5O2 = 3CO2 + 4H2O + heat
polymerization
halogen
initiation propagation termination
40. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
stereoisomers
Alkene
diol
chiral
41. Goal is to produce most stable carbocation
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42. Name for mathanal
not ignored
pyrolysis
formaldehyde
enantiomer
43. 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.
ketone
alcohol
molecular orbital
anti conformation
44. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
optical activity
geometric isomers
Alkyne
cold potassium permanganate
45. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
sigma bond
racemic mixture
sp3
Combustion
46. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
relative configuration
oxidation
saturated hydrocarbon
Alkane
47. When boat flips
propionaldehyde
combustion - disproportionation - free - radical substitution - pyrolysis
ring flip
weak bases
48. N - l - ml - ms
quantum numbers
catalytic hydrogenation
carbonyl
saturated hydrocarbon
49. 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-
amines
halogen
weak bases
quantum numbers
50. Common name for ethyne
specific rotation
Acetylene
eclipsed conformation
racemic mixture