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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. Carbon with four different substituents and lack a plane of symmetry
aprotic solvent
ozonolysis
chiral center
isomer
2. Iso - neo - cyclo
anti conformation
ring strain
not ignored
angle strain
3. N - l - ml - ms
covalent bond
Ignored
halogenation
quantum numbers
4. Rotations cancel each other out therefore no optical activity
chiral center
racemic mixture
specific rotation
enantiomer
5. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
absolute configuration
sp2
ketone
propionaldehyde
6. No double bonds. it has the maximum number of hydrogens.
combustion - disproportionation - free - radical substitution - pyrolysis
quantum numbers
saturated hydrocarbon
chiral
7. 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
quantum numbers
ketone
protic solvent
sigma bond
8. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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9. 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
triple bond
mcpba
disproportionation
10. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
chiral
disproportionation
hot - acidic potassium permanganate
ring flip
11. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
electrophile
sp3
sp
quantum numbers
12. Object that is not superimposable upon mirror image
gauche conformation
sp2
markovnikov's rule
chiral
13. A = observed rotation / concentration * length
geminal
anti conformation
specific rotation
molecular orbital
14. Methyl are 60 degrees apart. kinda stable
Acetylene
vicinal
gauche conformation
carbonyl
15. Results when cyclic molecules must assume conformations that have eclipsed interactions
ring flip
vicinal
catalytic hydrogenation
torsional strain
16. Arise from angle strain - torsional strian and nonbonded strain
triple bond
ring strain
nonbonded strain
achiral
17. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
achiral
sp2
pi bond
allyl
18. Carbon double bonded to an oxygen
Vinyl
carbonyl
sp
amines
19. Charged - need electrons
specific rotation
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophile
meso compound
20. Not solvated
enantiomer
ethers
aprotic solvent
Acetylene
21. Lowest priority group projects into the page
reducing
Alkane
initiation propagation termination
fischer projection
22. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
catalytic hydrogenation
Alkane
electrophilic addition of H2O
weak bases
23. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
nucleophile
configuration
achiral
meso compound
24. Functionality is specified by alkoxy- prefix. ROR
nonbonded strain
ethers
gauche conformation
Haloalkane
25. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
electrophilic addition of HX
geometric isomers
electrophilic addition
halogenation
26. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
ketone
allyl
triple bond
hot - acidic potassium permanganate
27. One s and three p orbitals
y- root - en -x-yne
saturated hydrocarbon
Alkyne
sp3
28. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
hydroboration
sp2
lindlar's catalyst
electrophilic addition of X2
29. Goal is to produce most stable carbocation
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30. F - CL - Br - I
cold potassium permanganate
halogen
acetaldehyde
ozonolysis
31. Spatial arrangement of the atoms or groups of a sterioisomer
configuration
conformational isomer
Ignored
markovnikov's rule
32. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
oxidizing
electrophilic addition of HX
methylene
sigma bond
33. Diol with hydroxyl group on same carbon
ring strain
allyl
geminal
pyrolysis
34. Steps of free radical substitution
pi bond
molecular orbital
initiation propagation termination
electrophilic addition of free radicals
35. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
sp2
carbonyl
halogenation
chiral center
36. Nucleus lover. electron rich species that are attracked to charged atoms
catalytic hydrogenation
nucleophile
Ignored
chiral
37. 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
sp2
y- root - en -x-yne
enantiomer
38. 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
weak bases
carboxylic acid
vicinal
39. Carbon carbon triple bonds. Suffix-yne.
absolute configuration
2^n
structural isomers
Alkyne
40. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
polymerization
carboxylic acid
Combustion
gauche conformation
41. Common name for ethyne
sp2
Acetylene
catalytic hydrogenation
geminal
42. Use the Greek root for the number of carbons followed by the ending - - ane
oxidizing
specific rotation
halogenation
Alkane nomenclature
43. 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
propionaldehyde
mcpba
allyl
sp3
44. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
not ignored
halogenation
y- root - en -x-yne
polymerization
45. Di - tri - t - sec - n -
Ignored
eclipsed conformation
electrophilic addition of H2O
reducing
46. Zn/h or CH3/s with ozonolysis
reducing
halogen
nonbonded strain
lindlar's catalyst
47. Hydrocarbon with one or more carbon carbon triple bond
peroxycarboxylic acid
Alkane nomenclature
markovnikov's rule
alkyne
48. 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.
molecular orbital
lindlar's catalyst
oxidation
2^n
49. Carbonyl located in middle or somewhere in chane. Named with One
aldehyde
ketone
triple bond
C3H8 + 5O2 = 3CO2 + 4H2O + heat
50. Name for mathanal
formaldehyde
racemic mixture
polymerization
y- root - en -x-yne