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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. Is bonded to only one other carbon atom
diastereomers
Vinyl
anti conformation
primary carbon
2. One s and two p 120 degree apart
halogenation
alkyne
diol
sp2
3. M - chloroperoxybenzoic acid
covalent bond
2^n
relative configuration
mcpba
4. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
achiral
amines
hot - acidic potassium permanganate
Combustion
5. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
electrophilic addition of free radicals
not ignored
chiral center
6. Nucleus lover. electron rich species that are attracked to charged atoms
primary carbon
conformational isomer
alkyne
nucleophile
7. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
sigma bond
racemic mixture
ethers
8. Most similar. same molecule only at different points in their rotation. show them with newmans projections
ketone
conformational isomer
aprotic solvent
enantiomer
9. Transfer of electrions from one atome to another
Haloalkane
allyl
fischer projection
ionic bond
10. What are the best leaving groups?
formaldehyde
optical activity
weak bases
achiral
11. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
Alkyne
absolute configuration
not ignored
ionic bond
12. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
chiral center
diol
disproportionation
13. How many stereoisomers can a molecule have with n chiral centers
2^n
aprotic solvent
primary carbon
sp
14. Formed by mixing different types of orbitals
hybridization
diol
sp
formaldehyde
15. Carbon with four different substituents and lack a plane of symmetry
methylene
mcpba
chiral center
enantiomer
16. Two hydroxyl groups
diol
peroxycarboxylic acid
diastereomers
ring strain
17. What is produced when o3 with lialh4 or nabh4
sp3
markovnikov's rule
alcohol
quantum numbers
18. Not solvated
configuration
anti conformation
lindlar's catalyst
aprotic solvent
19. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
sp
peroxycarboxylic acid
pyrolysis
aprotic solvent
20. Highest energy no separation. or 120 separation.
nucleophile
triple bond
lindlar's catalyst
eclipsed conformation
21. 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
Acetylene
structural isomers
molecular orbital
22. 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.
nonbonded strain
relative configuration
Acetylene
electrophile
23. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
ring flip
disproportionation
Alkyne
Ignored
24. When bond angles deviate from ideal values
electrophilic addition of free radicals
angle strain
isomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
25. 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.
ozonolysis
initiation propagation termination
diastereomers
Acetylene
26. Diols with hydroxyl group on adjacent carbon
vicinal
oxidizing
geometric isomers
oxidation
27. Monosubstituted ethylene
covalent bond
Vinyl
sp3
sp
28. One s and three p orbitals
peroxycarboxylic acid
halogenation
sp3
Alkane nomenclature
29. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
Combustion
geometric isomers
2^n
Ignored
30. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
formaldehyde
hydroboration
nonbonded strain
basicity
31. Spatial arrangement of the atoms or groups of a sterioisomer
diastereomers
ethers
initiation propagation termination
configuration
32. Kmno4
nonbonded strain
ethers
Ignored
potassium permanganate
33. Common name for ethyne
conformational isomer
Acetylene
cold potassium permanganate
quantum numbers
34. Share molecular formula but have different chemical and physical properties
aldehyde
structural isomers
not ignored
markovnikov's rule
35. Methyl are 60 degrees apart. kinda stable
eclipsed conformation
vicinal
electrophilic addition of H2O
gauche conformation
36. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
halogen
gauche conformation
halogenation
carbonyl
37. Moleculse that have the opposite configuration at their one chiral center. or if multiple chiral centers - must have the opposite configuration at every one of their chiral centers to be enantiomers. identical physical properties and much of the same
nonbonded strain
enantiomer
torsional strain
hot - acidic potassium permanganate
38. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
anti conformation
carboxylic acid
diastereomers
electrophilic addition of free radicals
39. Goal is to produce most stable carbocation
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40. Compounds with halogen
Haloalkane
Alkane
cold potassium permanganate
carbonyl
41. 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
structural isomers
aldehyde
hybridization
42. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
primary carbon
methylene
nonbonded strain
polymerization
43. Steps of free radical substitution
initiation propagation termination
polymerization
catalytic hydrogenation
electrophilic addition of X2
44. O3
pi bond
ozonolysis
Vinyl
Alkane
45. Results when cyclic molecules must assume conformations that have eclipsed interactions
meso compound
torsional strain
structural isomers
anti conformation
46. Sharing of electron between atoms
halogenation
covalent bond
alcohol
ionic bond
47. Rotations cancel each other out therefore no optical activity
alkyne
quantum numbers
racemic mixture
Alkene
48. Combustion reaction occurs through a radical process
configuration
C3H8 + 5O2 = 3CO2 + 4H2O + heat
optical activity
carboxylic acid
49. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
diol
absolute configuration
sigma bond
ionic bond
50. Most favorable of staggared conformations
anti conformation
electrophilic addition
quantum numbers
initiation propagation termination