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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. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
anti conformation
relative configuration
polymerization
primary carbon
2. Nucleus lover. electron rich species that are attracked to charged atoms
pyrolysis
relative configuration
nucleophile
basicity
3. If a compound is able to rotate plane polarized light.
halogen
chiral
geminal
optical activity
4. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
Alkyne
absolute configuration
specific rotation
5. A molecule with an internal plane of symmetry
ethers
primary carbon
meso compound
mcpba
6. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
covalent bond
carbonyl
sigma bond
carboxylic acid
7. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition of free radicals
relative configuration
halogenation
8. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
combustion - disproportionation - free - radical substitution - pyrolysis
ionic bond
y- root - en -x-yne
9. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
lindlar's catalyst
oxidizing
polymerization
eclipsed conformation
10. What are the best leaving groups?
methylene
acetaldehyde
Alkene
weak bases
11. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
fischer projection
relative configuration
enantiomer
angle strain
12. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
halogen
cold potassium permanganate
pi bond
catalytic hydrogenation
13. N - l - ml - ms
methylene
quantum numbers
gauche conformation
Acetylene
14. Monosubstituted ethylene
aprotic solvent
Vinyl
lindlar's catalyst
polymerization
15. Carbon double bonded to an oxygen
fischer projection
carbonyl
Haloalkane
saturated hydrocarbon
16. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
electrophilic addition of X2
sp3
electrophilic addition of HX
Ignored
17. Object that is not superimposable upon mirror image
saturated hydrocarbon
Vinyl
chiral
ketone
18. 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
absolute configuration
allyl
nucleophile
amines
19. How many stereoisomers can a molecule have with n chiral centers
2^n
primary carbon
acetaldehyde
basicity
20. 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-
basicity
relative configuration
covalent bond
amines
21. Charged - need electrons
electrophile
specific rotation
relative configuration
gauche conformation
22. Diol with hydroxyl group on same carbon
Alkane
geminal
alkyne
markovnikov's rule
23. Not solvated
basicity
aprotic solvent
cold potassium permanganate
Ignored
24. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
stereoisomers
electrophilic addition of HX
electrophilic addition of X2
protic solvent
25. Di - tri - t - sec - n -
pi bond
Ignored
cold potassium permanganate
geminal
26. O3
ring strain
ozonolysis
lindlar's catalyst
not ignored
27. When boat flips
ethers
potassium permanganate
primary carbon
ring flip
28. Sharing of electron between atoms
covalent bond
nucleophile
formaldehyde
gauche conformation
29. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
aprotic solvent
isomer
absolute configuration
aldehyde
30. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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31. Formed by mixing different types of orbitals
torsional strain
hybridization
Combustion
alcohol
32. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sigma bond
alcohol
ozonolysis
Alkane
33. Hydrocarbon with one or more carbon carbon triple bond
alcohol
methylene
disproportionation
alkyne
34. Carbon carbon triple bonds. Suffix-yne.
not ignored
Alkyne
Alkane
geminal
35. Lowest priority group projects into the page
configuration
fischer projection
formaldehyde
nucleophile
36. Refers to the =CH2 group
carboxylic acid
covalent bond
methylene
combustion - disproportionation - free - radical substitution - pyrolysis
37. Functionality is specified by alkoxy- prefix. ROR
nucleophile
catalytic hydrogenation
ethers
stereoisomers
38. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
reducing
torsional strain
structural isomers
pi bond
39. When bond angles deviate from ideal values
propionaldehyde
angle strain
oxidation
hybridization
40. M - chloroperoxybenzoic acid
torsional strain
pyrolysis
mcpba
polymerization
41. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
sigma bond
anti conformation
oxidizing
electrophilic addition of HX
42. Transfer of electrions from one atome to another
Vinyl
aldehyde
ionic bond
ring strain
43. If reagent has a bunch of oxygen
oxidation
Acetylene
allyl
carboxylic acid
44. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
ozonolysis
eclipsed conformation
cold potassium permanganate
potassium permanganate
45. Two hydroxyl groups
diol
anti conformation
chiral center
absolute configuration
46. What is produced when o3 with lialh4 or nabh4
molecular orbital
nucleophile
Alkane
alcohol
47. Iso - neo - cyclo
Alkane
not ignored
angle strain
nucleophile
48. One s and two p 120 degree apart
halogen
sp2
primary carbon
sp3
49. Name for mathanal
carbonyl
formaldehyde
methylene
diol
50. Name for propanal
cold potassium permanganate
propionaldehyde
stereoisomers
molecular orbital