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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. Charged - need electrons
electrophile
2^n
peroxycarboxylic acid
diastereomers
2. When bond angles deviate from ideal values
specific rotation
angle strain
nucleophile
alkyne
3. One s and three p orbitals
conformational isomer
sp3
electrophilic addition of X2
pyrolysis
4. How many stereoisomers can a molecule have with n chiral centers
configuration
potassium permanganate
ionic bond
2^n
5. Monosubstituted ethylene
racemic mixture
Vinyl
optical activity
Alkane nomenclature
6. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
ring flip
pi bond
y- root - en -x-yne
Alkane nomenclature
7. Use the Greek root for the number of carbons followed by the ending - - ane
triple bond
covalent bond
Alkane nomenclature
markovnikov's rule
8. Combustion reaction occurs through a radical process
triple bond
C3H8 + 5O2 = 3CO2 + 4H2O + heat
reducing
electrophilic addition of HX
9. Kmno4
potassium permanganate
formaldehyde
sp3
ring flip
10. Share molecular formula but have different chemical and physical properties
weak bases
Alkene
electrophilic addition
structural isomers
11. Di - tri - t - sec - n -
amines
halogen
mcpba
Ignored
12. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
y- root - en -x-yne
cold potassium permanganate
meso compound
13. Steps of free radical substitution
ozonolysis
angle strain
initiation propagation termination
catalytic hydrogenation
14. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
disproportionation
ionic bond
markovnikov's rule
15. Carbon carbon triple bonds. Suffix-yne.
geometric isomers
Alkyne
Alkane nomenclature
halogen
16. N - l - ml - ms
geometric isomers
quantum numbers
electrophilic addition
methylene
17. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
initiation propagation termination
achiral
lindlar's catalyst
allyl
18. If a compound is able to rotate plane polarized light.
diol
aprotic solvent
optical activity
electrophilic addition of H2O
19. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
meso compound
structural isomers
carboxylic acid
markovnikov's rule
20. Formed by mixing different types of orbitals
hybridization
aldehyde
nonbonded strain
weak bases
21. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
chiral
covalent bond
hybridization
cold potassium permanganate
22. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
aldehyde
fischer projection
electrophilic addition of HX
disproportionation
23. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
ozonolysis
ethers
basicity
24. Is bonded to only one other carbon atom
aprotic solvent
allyl
primary carbon
ketone
25. Not solvated
Acetylene
2^n
aprotic solvent
lindlar's catalyst
26. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
torsional strain
halogenation
hot - acidic potassium permanganate
oxidation
27. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
electrophilic addition of HX
hydroboration
ring strain
vicinal
28. Refers to the =CH2 group
Ignored
methylene
specific rotation
Combustion
29. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
primary carbon
Alkene
aldehyde
enantiomer
30. Carbon double bonded to an oxygen
conformational isomer
carbonyl
combustion - disproportionation - free - radical substitution - pyrolysis
electrophilic addition
31. 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-
aldehyde
basicity
amines
chiral center
32. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
basicity
Alkane
hydroboration
reducing
33. Iso - neo - cyclo
angle strain
geminal
halogenation
not ignored
34. Carbon with four different substituents and lack a plane of symmetry
stereoisomers
chiral center
pi bond
optical activity
35. Transfer of electrions from one atome to another
quantum numbers
not ignored
ionic bond
geometric isomers
36. A = observed rotation / concentration * length
ozonolysis
achiral
specific rotation
pi bond
37. Spatial arrangement of the atoms or groups of a sterioisomer
configuration
geometric isomers
cold potassium permanganate
oxidation
38. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
relative configuration
polymerization
diastereomers
potassium permanganate
39. 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
torsional strain
structural isomers
catalytic hydrogenation
Haloalkane
40. 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.
oxidation
ring strain
molecular orbital
initiation propagation termination
41. Functionality is specified by alkoxy- prefix. ROR
ionic bond
ethers
allyl
protic solvent
42. Sharing of electron between atoms
initiation propagation termination
Alkyne
nonbonded strain
covalent bond
43. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
ozonolysis
enantiomer
torsional strain
44. Highest energy no separation. or 120 separation.
Ignored
propionaldehyde
eclipsed conformation
halogen
45. 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
oxidation
molecular orbital
electrophilic addition of free radicals
allyl
46. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
halogenation
propionaldehyde
electrophilic addition of free radicals
47. Name for ethanal
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ozonolysis
acetaldehyde
configuration
48. 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.
diastereomers
ethers
markovnikov's rule
angle strain
49. Results when cyclic molecules must assume conformations that have eclipsed interactions
electrophilic addition
specific rotation
torsional strain
Alkane
50. Rotations cancel each other out therefore no optical activity
disproportionation
racemic mixture
oxidation
absolute configuration