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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. One s and two p 120 degree apart
pi bond
sp2
ozonolysis
not ignored
2. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
carboxylic acid
pi bond
sigma bond
formaldehyde
3. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
ozonolysis
2^n
chiral center
cold potassium permanganate
4. Compounds with halogen
Haloalkane
electrophile
Alkane
formaldehyde
5. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
ring flip
acetaldehyde
torsional strain
Alkene
6. 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
weak bases
pyrolysis
aldehyde
2^n
7. Goal is to produce most stable carbocation
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8. Carbon double bonded to an oxygen
oxidizing
meso compound
angle strain
carbonyl
9. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
initiation propagation termination
absolute configuration
oxidizing
achiral
10. Use the Greek root for the number of carbons followed by the ending - - ane
Alkane nomenclature
lindlar's catalyst
electrophilic addition of X2
sp
11. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
ketone
ionic bond
polymerization
diol
12. Rotations cancel each other out therefore no optical activity
racemic mixture
optical activity
electrophilic addition of H2O
Combustion
13. Common name for ethyne
Haloalkane
acetaldehyde
Acetylene
catalytic hydrogenation
14. Object that is not superimposable upon mirror image
chiral
isomer
oxidizing
ionic bond
15. Same molecular formula but different structure
isomer
meso compound
configuration
halogenation
16. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
C3H8 + 5O2 = 3CO2 + 4H2O + heat
absolute configuration
pi bond
combustion - disproportionation - free - radical substitution - pyrolysis
17. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
halogenation
fischer projection
markovnikov's rule
enantiomer
18. F - CL - Br - I
quantum numbers
halogen
sigma bond
racemic mixture
19. Zn/h or CH3/s with ozonolysis
meso compound
anti conformation
specific rotation
reducing
20. How many stereoisomers can a molecule have with n chiral centers
formaldehyde
angle strain
acetaldehyde
2^n
21. Diols with hydroxyl group on adjacent carbon
eclipsed conformation
vicinal
primary carbon
optical activity
22. M - chloroperoxybenzoic acid
achiral
amines
hybridization
mcpba
23. 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
ionic bond
angle strain
catalytic hydrogenation
electrophile
24. Steps of free radical substitution
structural isomers
carboxylic acid
initiation propagation termination
sp2
25. N - l - ml - ms
weak bases
carbonyl
quantum numbers
alcohol
26. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
relative configuration
Haloalkane
potassium permanganate
amines
27. What are the best leaving groups?
angle strain
hydroboration
weak bases
hybridization
28. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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29. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
Alkane nomenclature
ionic bond
not ignored
sp
30. Functionality is specified by alkoxy- prefix. ROR
achiral
specific rotation
relative configuration
ethers
31. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
covalent bond
electrophilic addition
diastereomers
carbonyl
32. Carbon carbon triple bonds. Suffix-yne.
Alkyne
catalytic hydrogenation
triple bond
covalent bond
33. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
ozonolysis
electrophilic addition of H2O
Alkyne
34. No double bonds. it has the maximum number of hydrogens.
formaldehyde
geometric isomers
weak bases
saturated hydrocarbon
35. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
absolute configuration
covalent bond
ring flip
alcohol
36. 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.
diastereomers
chiral center
molecular orbital
enantiomer
37. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
configuration
fischer projection
electrophilic addition of H2O
potassium permanganate
38. Arise from angle strain - torsional strian and nonbonded strain
ring strain
configuration
carboxylic acid
Alkene
39. Not solvated
relative configuration
sp2
geminal
aprotic solvent
40. Name for propanal
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ionic bond
propionaldehyde
y- root - en -x-yne
41. Charged - need electrons
protic solvent
electrophile
geometric isomers
anti conformation
42. Highest energy no separation. or 120 separation.
halogenation
pyrolysis
carbonyl
eclipsed conformation
43. Nucleus lover. electron rich species that are attracked to charged atoms
enantiomer
angle strain
electrophilic addition of H2O
nucleophile
44. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
polymerization
aldehyde
electrophilic addition of X2
carboxylic acid
45. Most favorable of staggared conformations
electrophilic addition of free radicals
anti conformation
achiral
angle strain
46. 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-
ozonolysis
ethers
amines
mcpba
47. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
chiral
aldehyde
halogen
propionaldehyde
48. Name for ethanal
acetaldehyde
weak bases
ozonolysis
stereoisomers
49. Refers to the =CH2 group
methylene
geminal
alkyne
nucleophile
50. Iso - neo - cyclo
lindlar's catalyst
ozonolysis
oxidation
not ignored