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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. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
polymerization
formaldehyde
specific rotation
hot - acidic potassium permanganate
2. If a compound is able to rotate plane polarized light.
optical activity
Alkyne
achiral
specific rotation
3. 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
potassium permanganate
catalytic hydrogenation
saturated hydrocarbon
torsional strain
4. 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
sp
isomer
oxidizing
allyl
5. If reagent has a bunch of oxygen
gauche conformation
conformational isomer
markovnikov's rule
oxidation
6. Iso - neo - cyclo
not ignored
Ignored
basicity
y- root - en -x-yne
7. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
Combustion
primary carbon
oxidizing
hot - acidic potassium permanganate
8. A = observed rotation / concentration * length
lindlar's catalyst
2^n
y- root - en -x-yne
specific rotation
9. 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
ionic bond
protic solvent
sp
conformational isomer
10. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
markovnikov's rule
covalent bond
stereoisomers
cold potassium permanganate
11. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
electrophilic addition of X2
sigma bond
Alkane nomenclature
reducing
12. Share molecular formula but have different chemical and physical properties
alcohol
structural isomers
nonbonded strain
Haloalkane
13. Sharing of electron between atoms
sp
covalent bond
alkyne
polymerization
14. Is bonded to only one other carbon atom
torsional strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
specific rotation
primary carbon
15. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
relative configuration
ozonolysis
carboxylic acid
reducing
16. No double bonds. it has the maximum number of hydrogens.
electrophilic addition of X2
Alkyne
amines
saturated hydrocarbon
17. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
C3H8 + 5O2 = 3CO2 + 4H2O + heat
carbonyl
ozonolysis
ring flip
18. Nucleus lover. electron rich species that are attracked to charged atoms
C3H8 + 5O2 = 3CO2 + 4H2O + heat
angle strain
nucleophile
hydroboration
19. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
structural isomers
allyl
saturated hydrocarbon
20. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
ring strain
triple bond
hydroboration
oxidizing
21. Arise from angle strain - torsional strian and nonbonded strain
oxidizing
geometric isomers
fischer projection
ring strain
22. Carbon with four different substituents and lack a plane of symmetry
electrophilic addition of free radicals
C3H8 + 5O2 = 3CO2 + 4H2O + heat
chiral center
disproportionation
23. When boat flips
oxidation
ring flip
ketone
achiral
24. 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.
disproportionation
absolute configuration
nonbonded strain
Haloalkane
25. Functionality is specified by alkoxy- prefix. ROR
lindlar's catalyst
Alkene
ethers
acetaldehyde
26. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
sigma bond
sp3
hydroboration
27. Rotations cancel each other out therefore no optical activity
diastereomers
structural isomers
racemic mixture
stereoisomers
28. Diols with hydroxyl group on adjacent carbon
2^n
molecular orbital
vicinal
formaldehyde
29. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
Alkane
electrophilic addition
disproportionation
Acetylene
30. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
Alkyne
basicity
absolute configuration
angle strain
31. How many stereoisomers can a molecule have with n chiral centers
Combustion
triple bond
halogen
2^n
32. 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-
configuration
Ignored
sp2
amines
33. Name for propanal
methylene
propionaldehyde
molecular orbital
sigma bond
34. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
electrophilic addition of free radicals
propionaldehyde
pyrolysis
y- root - en -x-yne
35. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
ozonolysis
methylene
enantiomer
electrophilic addition of H2O
36. What is produced when o3 with lialh4 or nabh4
initiation propagation termination
alcohol
covalent bond
ozonolysis
37. Object that is not superimposable upon mirror image
mcpba
chiral
enantiomer
ionic bond
38. Carbon double bonded to an oxygen
sp
polymerization
carbonyl
racemic mixture
39. Methyl are 60 degrees apart. kinda stable
optical activity
electrophilic addition of H2O
gauche conformation
isomer
40. Transfer of electrions from one atome to another
markovnikov's rule
ionic bond
pi bond
diol
41. Common name for ethyne
Acetylene
2^n
angle strain
electrophilic addition
42. One s and three p orbitals
sp3
racemic mixture
chiral
quantum numbers
43. A molecule with an internal plane of symmetry
halogen
angle strain
mcpba
meso compound
44. M - chloroperoxybenzoic acid
diol
mcpba
Vinyl
electrophilic addition
45. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
Alkane
alcohol
methylene
polymerization
46. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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47. Zn/h or CH3/s with ozonolysis
reducing
ring flip
not ignored
ketone
48. One s and two p 120 degree apart
electrophilic addition of free radicals
relative configuration
sp2
optical activity
49. Carbonyl located in middle or somewhere in chane. Named with One
carboxylic acid
polymerization
ketone
sp
50. Most favorable of staggared conformations
reducing
anti conformation
lindlar's catalyst
sp