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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. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
electrophilic addition of HX
geometric isomers
geminal
conformational isomer
2. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
fischer projection
ozonolysis
electrophilic addition of HX
Alkyne
3. Formed by mixing different types of orbitals
ozonolysis
aprotic solvent
lindlar's catalyst
hybridization
4. Spatial arrangement of the atoms or groups of a sterioisomer
Alkyne
configuration
Alkene
halogenation
5. One s and two p 120 degree apart
2^n
oxidizing
sp2
initiation propagation termination
6. Rotations cancel each other out therefore no optical activity
relative configuration
anti conformation
racemic mixture
sigma bond
7. 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-
electrophile
amines
ring strain
Haloalkane
8. Di - tri - t - sec - n -
Ignored
meso compound
carboxylic acid
pyrolysis
9. Methyl are 60 degrees apart. kinda stable
conformational isomer
gauche conformation
electrophilic addition of free radicals
sigma bond
10. Charged - need electrons
ozonolysis
electrophilic addition of HX
gauche conformation
electrophile
11. Carbonyl located in middle or somewhere in chane. Named with One
amines
lindlar's catalyst
halogenation
ketone
12. A molecule with an internal plane of symmetry
meso compound
formaldehyde
molecular orbital
Ignored
13. 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.
markovnikov's rule
acetaldehyde
molecular orbital
protic solvent
14. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
polymerization
chiral
markovnikov's rule
Combustion
15. Highest energy no separation. or 120 separation.
oxidizing
eclipsed conformation
formaldehyde
ozonolysis
16. 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
meso compound
weak bases
methylene
protic solvent
17. Lowest priority group projects into the page
saturated hydrocarbon
diastereomers
fischer projection
sp2
18. Alphabetical order of alkane rxn
enantiomer
not ignored
hybridization
combustion - disproportionation - free - radical substitution - pyrolysis
19. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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20. 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.
Vinyl
acetaldehyde
halogen
nonbonded strain
21. O3
formaldehyde
ozonolysis
combustion - disproportionation - free - radical substitution - pyrolysis
electrophilic addition of HX
22. Carbon carbon triple bonds. Suffix-yne.
mcpba
anti conformation
ozonolysis
Alkyne
23. Kmno4
Acetylene
peroxycarboxylic acid
2^n
potassium permanganate
24. 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
combustion - disproportionation - free - radical substitution - pyrolysis
geminal
pyrolysis
Alkane
25. M - chloroperoxybenzoic acid
alcohol
mcpba
oxidizing
aldehyde
26. Most similar. same molecule only at different points in their rotation. show them with newmans projections
diastereomers
conformational isomer
specific rotation
Alkene
27. What is produced when o3 with lialh4 or nabh4
diastereomers
reducing
electrophilic addition of X2
alcohol
28. A = observed rotation / concentration * length
triple bond
Vinyl
specific rotation
diastereomers
29. Functionality is specified by alkoxy- prefix. ROR
diol
ethers
weak bases
hot - acidic potassium permanganate
30. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
quantum numbers
electrophile
C3H8 + 5O2 = 3CO2 + 4H2O + heat
stereoisomers
31. Zn/h or CH3/s with ozonolysis
meso compound
Alkane nomenclature
reducing
covalent bond
32. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
basicity
hydroboration
ionic bond
markovnikov's rule
33. N - l - ml - ms
electrophile
quantum numbers
ionic bond
achiral
34. Chain of carbons connected by single bonds with hydrogen atoms attached.
covalent bond
Alkane
reducing
sp
35. Diols with hydroxyl group on adjacent carbon
halogenation
alkyne
electrophilic addition of free radicals
vicinal
36. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
fischer projection
relative configuration
electrophilic addition of free radicals
aldehyde
37. Goal is to produce most stable carbocation
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38. Object that is not superimposable upon mirror image
anti conformation
pi bond
chiral
ozonolysis
39. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
achiral
Haloalkane
ketone
disproportionation
40. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
electrophilic addition of H2O
C3H8 + 5O2 = 3CO2 + 4H2O + heat
sp
Ignored
41. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
achiral
ring flip
hot - acidic potassium permanganate
peroxycarboxylic acid
42. Arise from angle strain - torsional strian and nonbonded strain
racemic mixture
weak bases
Ignored
ring strain
43. Same molecular formula but different structure
Acetylene
isomer
meso compound
Alkyne
44. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
absolute configuration
lindlar's catalyst
ozonolysis
alcohol
45. 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
y- root - en -x-yne
enantiomer
mcpba
weak bases
46. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
amines
pi bond
Alkane
enantiomer
47. 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
triple bond
quantum numbers
covalent bond
48. Diol with hydroxyl group on same carbon
racemic mixture
Alkane nomenclature
geminal
y- root - en -x-yne
49. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
methylene
aldehyde
sp3
electrophilic addition of H2O
50. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
Alkane nomenclature
carboxylic acid
hybridization
acetaldehyde