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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. 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
optical activity
mcpba
pyrolysis
not ignored
2. Spatial arrangement of the atoms or groups of a sterioisomer
configuration
optical activity
chiral center
sigma bond
3. Carbon with four different substituents and lack a plane of symmetry
racemic mixture
y- root - en -x-yne
configuration
chiral center
4. Is bonded to only one other carbon atom
C3H8 + 5O2 = 3CO2 + 4H2O + heat
Alkane
primary carbon
Alkene
5. Methyl are 60 degrees apart. kinda stable
Haloalkane
gauche conformation
carboxylic acid
lindlar's catalyst
6. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
enantiomer
ozonolysis
fischer projection
peroxycarboxylic acid
7. Highest energy no separation. or 120 separation.
eclipsed conformation
oxidizing
geometric isomers
sp3
8. Goal is to produce most stable carbocation
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9. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sigma bond
ozonolysis
Acetylene
acetaldehyde
10. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
specific rotation
catalytic hydrogenation
sigma bond
stereoisomers
11. F - CL - Br - I
alkyne
diol
halogen
hot - acidic potassium permanganate
12. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
nucleophile
ionic bond
sp
sigma bond
13. Nucleus lover. electron rich species that are attracked to charged atoms
ozonolysis
Ignored
quantum numbers
nucleophile
14. Formed by mixing different types of orbitals
Alkyne
Alkene
mcpba
hybridization
15. Arise from angle strain - torsional strian and nonbonded strain
nucleophile
halogenation
Ignored
ring strain
16. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
reducing
C3H8 + 5O2 = 3CO2 + 4H2O + heat
polymerization
hybridization
17. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
Alkene
methylene
optical activity
angle strain
18. Charged - need electrons
electrophile
aldehyde
ionic bond
ring strain
19. Alphabetical order of alkane rxn
quantum numbers
nonbonded strain
pyrolysis
combustion - disproportionation - free - radical substitution - pyrolysis
20. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
primary carbon
enantiomer
carboxylic acid
quantum numbers
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-
conformational isomer
anti conformation
hydroboration
amines
22. Two hydroxyl groups
isomer
electrophilic addition of free radicals
enantiomer
diol
23. Most similar. same molecule only at different points in their rotation. show them with newmans projections
weak bases
Haloalkane
angle strain
conformational isomer
24. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
Haloalkane
Alkene
ozonolysis
pi bond
25. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
molecular orbital
potassium permanganate
geminal
disproportionation
26. Carbon double bonded to an oxygen
catalytic hydrogenation
Alkane
carbonyl
halogen
27. If reagent has a bunch of oxygen
oxidation
mcpba
achiral
conformational isomer
28. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
isomer
peroxycarboxylic acid
absolute configuration
electrophilic addition of free radicals
29. Object that is not superimposable upon mirror image
achiral
chiral
combustion - disproportionation - free - radical substitution - pyrolysis
hydroboration
30. 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
catalytic hydrogenation
enantiomer
absolute configuration
configuration
31. Common name for ethyne
initiation propagation termination
Acetylene
gauche conformation
hot - acidic potassium permanganate
32. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
Haloalkane
electrophilic addition of X2
optical activity
cold potassium permanganate
33. 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.
eclipsed conformation
protic solvent
diastereomers
saturated hydrocarbon
34. Zn/h or CH3/s with ozonolysis
pi bond
reducing
nucleophile
Alkene
35. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
Ignored
relative configuration
Vinyl
C3H8 + 5O2 = 3CO2 + 4H2O + heat
36. Lowest priority group projects into the page
allyl
ozonolysis
racemic mixture
fischer projection
37. When boat flips
ethers
Vinyl
ring flip
ring strain
38. Diol with hydroxyl group on same carbon
pyrolysis
geminal
Alkene
nucleophile
39. Not solvated
aprotic solvent
eclipsed conformation
quantum numbers
racemic mixture
40. Hydrocarbon with one or more carbon carbon triple bond
alkyne
Alkene
sp3
sp2
41. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
sp
formaldehyde
hot - acidic potassium permanganate
specific rotation
42. Kmno4
Alkane nomenclature
potassium permanganate
eclipsed conformation
geometric isomers
43. Compounds with halogen
enantiomer
structural isomers
Haloalkane
halogenation
44. Name for mathanal
reducing
formaldehyde
electrophilic addition
halogen
45. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
basicity
quantum numbers
disproportionation
carbonyl
46. A molecule with an internal plane of symmetry
relative configuration
Ignored
primary carbon
meso compound
47. Carbonyl located in middle or somewhere in chane. Named with One
Ignored
ketone
structural isomers
mcpba
48. M - chloroperoxybenzoic acid
triple bond
mcpba
chiral
pi bond
49. Sharing of electron between atoms
geometric isomers
covalent bond
enantiomer
nucleophile
50. Functionality is specified by alkoxy- prefix. ROR
configuration
ethers
alcohol
halogen