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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. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
electrophilic addition of H2O
halogenation
formaldehyde
enantiomer
2. Carbon double bonded to an oxygen
carbonyl
geometric isomers
ring flip
electrophilic addition of H2O
3. Transfer of electrions from one atome to another
covalent bond
electrophile
primary carbon
ionic bond
4. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
polymerization
markovnikov's rule
electrophilic addition of HX
acetaldehyde
5. Rotations cancel each other out therefore no optical activity
relative configuration
markovnikov's rule
enantiomer
racemic mixture
6. Diols with hydroxyl group on adjacent carbon
catalytic hydrogenation
propionaldehyde
vicinal
Alkane nomenclature
7. Goal is to produce most stable carbocation
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8. Not solvated
aprotic solvent
carboxylic acid
absolute configuration
hybridization
9. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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10. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
not ignored
reducing
halogenation
Combustion
11. If a compound is able to rotate plane polarized light.
saturated hydrocarbon
quantum numbers
diastereomers
optical activity
12. 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
sigma bond
propionaldehyde
Alkene
13. 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-
basicity
amines
potassium permanganate
not ignored
14. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
molecular orbital
hybridization
Combustion
geometric isomers
15. How many stereoisomers can a molecule have with n chiral centers
halogen
covalent bond
2^n
diol
16. Arise from angle strain - torsional strian and nonbonded strain
ring strain
2^n
enantiomer
protic solvent
17. Functionality is specified by alkoxy- prefix. ROR
racemic mixture
aprotic solvent
anti conformation
ethers
18. Combustion reaction occurs through a radical process
isomer
C3H8 + 5O2 = 3CO2 + 4H2O + heat
carbonyl
sp2
19. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
relative configuration
mcpba
hydroboration
electrophile
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.
Combustion
specific rotation
halogenation
nonbonded strain
21. Kmno4
formaldehyde
enantiomer
sigma bond
potassium permanganate
22. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
triple bond
pi bond
Alkyne
stereoisomers
23. What is produced when o3 with lialh4 or nabh4
alcohol
diastereomers
oxidation
ozonolysis
24. A sigma bond and two pi bonds
triple bond
vicinal
basicity
acetaldehyde
25. 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
fischer projection
enantiomer
diastereomers
eclipsed conformation
26. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
hot - acidic potassium permanganate
electrophilic addition of free radicals
stereoisomers
diastereomers
27. Compounds with halogen
Haloalkane
ketone
meso compound
achiral
28. Monosubstituted ethylene
geminal
disproportionation
Alkene
Vinyl
29. Steps of free radical substitution
initiation propagation termination
lindlar's catalyst
C3H8 + 5O2 = 3CO2 + 4H2O + heat
Haloalkane
30. O3
achiral
ozonolysis
Vinyl
ring strain
31. Diol with hydroxyl group on same carbon
disproportionation
optical activity
markovnikov's rule
geminal
32. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
mcpba
Haloalkane
meso compound
carboxylic acid
33. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
protic solvent
sigma bond
halogenation
electrophilic addition of X2
34. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
electrophilic addition of HX
quantum numbers
fischer projection
disproportionation
35. If reagent has a bunch of oxygen
oxidation
electrophilic addition of free radicals
diol
hydroboration
36. Lowest priority group projects into the page
Acetylene
fischer projection
Ignored
carbonyl
37. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
Alkyne
carboxylic acid
oxidation
electrophilic addition of H2O
38. Hydrocarbon with one or more carbon carbon triple bond
pyrolysis
alkyne
ozonolysis
nucleophile
39. Methyl are 60 degrees apart. kinda stable
electrophilic addition
reducing
vicinal
gauche conformation
40. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
ozonolysis
electrophile
sp
pyrolysis
41. One s and two p 120 degree apart
alcohol
sp2
basicity
pi bond
42. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
halogenation
disproportionation
diastereomers
peroxycarboxylic acid
43. Most favorable of staggared conformations
ring flip
anti conformation
electrophilic addition of HX
Acetylene
44. Carbon carbon triple bonds. Suffix-yne.
sp
conformational isomer
Alkyne
ring strain
45. Formed by mixing different types of orbitals
racemic mixture
protic solvent
anti conformation
hybridization
46. M - chloroperoxybenzoic acid
pi bond
specific rotation
mcpba
potassium permanganate
47. Common name for ethyne
aprotic solvent
Ignored
fischer projection
Acetylene
48. Carbonyl located in middle or somewhere in chane. Named with One
ketone
saturated hydrocarbon
halogen
ozonolysis
49. Is bonded to only one other carbon atom
eclipsed conformation
electrophilic addition of HX
primary carbon
chiral center
50. Di - tri - t - sec - n -
gauche conformation
Ignored
absolute configuration
potassium permanganate