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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. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
specific rotation
sp
carboxylic acid
ozonolysis
2. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
Combustion
peroxycarboxylic acid
sp
pi bond
3. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
allyl
electrophilic addition of X2
ring flip
covalent bond
4. Iso - neo - cyclo
not ignored
potassium permanganate
2^n
nucleophile
5. Name for propanal
propionaldehyde
chiral center
saturated hydrocarbon
weak bases
6. Compounds with halogen
hydroboration
carboxylic acid
Alkane nomenclature
Haloalkane
7. Carbon double bonded to an oxygen
quantum numbers
hybridization
carbonyl
C3H8 + 5O2 = 3CO2 + 4H2O + heat
8. Sharing of electron between atoms
covalent bond
pyrolysis
carbonyl
oxidation
9. Name for mathanal
acetaldehyde
basicity
formaldehyde
2^n
10. Diol with hydroxyl group on same carbon
geminal
sp3
torsional strain
ozonolysis
11. Steps of free radical substitution
halogenation
initiation propagation termination
ozonolysis
racemic mixture
12. 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
protic solvent
eclipsed conformation
weak bases
not ignored
13. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
catalytic hydrogenation
achiral
carbonyl
Alkane
14. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
cold potassium permanganate
electrophilic addition of H2O
allyl
markovnikov's rule
15. Results when cyclic molecules must assume conformations that have eclipsed interactions
amines
Acetylene
ring strain
torsional strain
16. Methyl are 60 degrees apart. kinda stable
gauche conformation
geometric isomers
molecular orbital
methylene
17. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
quantum numbers
polymerization
Combustion
gauche conformation
18. 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
enantiomer
angle strain
Acetylene
amines
19. Monosubstituted ethylene
enantiomer
Vinyl
eclipsed conformation
chiral center
20. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
sp2
mcpba
combustion - disproportionation - free - radical substitution - pyrolysis
stereoisomers
21. Carbon carbon triple bonds. Suffix-yne.
disproportionation
electrophilic addition of free radicals
Alkyne
initiation propagation termination
22. One s and two p 120 degree apart
eclipsed conformation
chiral
sp2
propionaldehyde
23. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
electrophilic addition
vicinal
conformational isomer
combustion - disproportionation - free - radical substitution - pyrolysis
24. Refers to the =CH2 group
not ignored
sp3
methylene
diastereomers
25. Carbonyl located in middle or somewhere in chane. Named with One
nonbonded strain
mcpba
ketone
carbonyl
26. 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.
carboxylic acid
diastereomers
potassium permanganate
pi bond
27. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
sigma bond
Alkane
y- root - en -x-yne
relative configuration
28. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
y- root - en -x-yne
polymerization
achiral
29. When bond angles deviate from ideal values
angle strain
markovnikov's rule
ionic bond
methylene
30. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
Alkene
Acetylene
electrophilic addition of HX
31. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
amines
optical activity
ionic bond
halogenation
32. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sp2
sigma bond
triple bond
electrophilic addition of X2
33. M - chloroperoxybenzoic acid
mcpba
ring flip
electrophilic addition of free radicals
absolute configuration
34. Object that is not superimposable upon mirror image
Vinyl
chiral
primary carbon
enantiomer
35. 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-
amines
hydroboration
absolute configuration
stereoisomers
36. Formed by mixing different types of orbitals
hybridization
electrophile
Vinyl
weak bases
37. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
Haloalkane
aldehyde
electrophilic addition of H2O
carbonyl
38. Most favorable of staggared conformations
Vinyl
anti conformation
cold potassium permanganate
initiation propagation termination
39. Common name for ethyne
not ignored
hot - acidic potassium permanganate
enantiomer
Acetylene
40. Not solvated
fischer projection
aprotic solvent
Acetylene
stereoisomers
41. Arise from angle strain - torsional strian and nonbonded strain
stereoisomers
halogenation
ring strain
saturated hydrocarbon
42. A sigma bond and two pi bonds
meso compound
triple bond
conformational isomer
molecular orbital
43. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
disproportionation
y- root - en -x-yne
Acetylene
44. One s and three p orbitals
alkyne
allyl
nucleophile
sp3
45. Same molecular formula but different structure
fischer projection
carboxylic acid
isomer
halogen
46. Charged - need electrons
electrophilic addition of H2O
Alkene
sp
electrophile
47. Use the Greek root for the number of carbons followed by the ending - - ane
specific rotation
Alkane nomenclature
C3H8 + 5O2 = 3CO2 + 4H2O + heat
aprotic solvent
48. Transfer of electrions from one atome to another
propionaldehyde
electrophile
enantiomer
ionic bond
49. Di - tri - t - sec - n -
pyrolysis
Ignored
eclipsed conformation
diastereomers
50. How many stereoisomers can a molecule have with n chiral centers
Alkyne
electrophilic addition of free radicals
pyrolysis
2^n