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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. Kmno4
carbonyl
anti conformation
relative configuration
potassium permanganate
2. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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3. How many stereoisomers can a molecule have with n chiral centers
2^n
oxidizing
electrophilic addition of X2
primary carbon
4. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
configuration
ring strain
electrophilic addition of X2
chiral center
5. Arise from angle strain - torsional strian and nonbonded strain
ring strain
mcpba
achiral
nonbonded strain
6. Not solvated
gauche conformation
weak bases
aprotic solvent
covalent bond
7. Nucleus lover. electron rich species that are attracked to charged atoms
absolute configuration
peroxycarboxylic acid
2^n
nucleophile
8. F - CL - Br - I
initiation propagation termination
diastereomers
Acetylene
halogen
9. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
Alkene
aldehyde
pi bond
eclipsed conformation
10. 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
angle strain
pyrolysis
peroxycarboxylic acid
gauche conformation
11. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
mcpba
Alkyne
ionic bond
12. Chain of carbons connected by single bonds with hydrogen atoms attached.
weak bases
sp
Alkane
Acetylene
13. 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
protic solvent
ozonolysis
halogenation
14. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
lindlar's catalyst
electrophilic addition of free radicals
aprotic solvent
15. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
gauche conformation
sp
lindlar's catalyst
racemic mixture
16. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
polymerization
formaldehyde
relative configuration
diastereomers
17. Carbon double bonded to an oxygen
ring flip
carbonyl
basicity
molecular orbital
18. 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
ketone
allyl
primary carbon
carbonyl
19. Rotations cancel each other out therefore no optical activity
structural isomers
pyrolysis
ozonolysis
racemic mixture
20. 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
alcohol
sp2
diol
21. Same molecular formula but different structure
ring flip
electrophilic addition
isomer
fischer projection
22. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
diol
ozonolysis
hydroboration
oxidation
23. Transfer of electrions from one atome to another
configuration
lindlar's catalyst
racemic mixture
ionic bond
24. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
halogen
racemic mixture
diol
polymerization
25. Functionality is specified by alkoxy- prefix. ROR
ozonolysis
fischer projection
aprotic solvent
ethers
26. If a compound is able to rotate plane polarized light.
anti conformation
ionic bond
disproportionation
optical activity
27. Name for ethanal
Alkane nomenclature
acetaldehyde
eclipsed conformation
covalent bond
28. Iso - neo - cyclo
methylene
alcohol
pyrolysis
not ignored
29. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
vicinal
y- root - en -x-yne
absolute configuration
alcohol
30. 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.
hybridization
molecular orbital
nonbonded strain
electrophilic addition of H2O
31. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
quantum numbers
polymerization
ring strain
32. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
electrophilic addition
absolute configuration
y- root - en -x-yne
anti conformation
33. O3
torsional strain
halogenation
ozonolysis
aldehyde
34. Refers to the =CH2 group
aldehyde
oxidation
alkyne
methylene
35. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
Haloalkane
propionaldehyde
oxidizing
not ignored
36. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
aprotic solvent
ethers
peroxycarboxylic acid
37. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
carboxylic acid
relative configuration
halogenation
conformational isomer
38. Zn/h or CH3/s with ozonolysis
carbonyl
racemic mixture
reducing
weak bases
39. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
absolute configuration
specific rotation
reducing
carboxylic acid
40. If reagent has a bunch of oxygen
pyrolysis
oxidation
ring strain
Ignored
41. Hydrocarbon with one or more carbon carbon triple bond
alkyne
specific rotation
stereoisomers
electrophilic addition of HX
42. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
ozonolysis
enantiomer
pi bond
catalytic hydrogenation
43. Combustion reaction occurs through a radical process
sp3
angle strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
electrophilic addition of HX
44. Methyl are 60 degrees apart. kinda stable
aprotic solvent
reducing
primary carbon
gauche conformation
45. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
covalent bond
saturated hydrocarbon
protic solvent
y- root - en -x-yne
46. Most similar. same molecule only at different points in their rotation. show them with newmans projections
conformational isomer
electrophilic addition of free radicals
nonbonded strain
combustion - disproportionation - free - radical substitution - pyrolysis
47. Common name for ethyne
Acetylene
nucleophile
carbonyl
alkyne
48. Steps of free radical substitution
ketone
reducing
sp2
initiation propagation termination
49. Charged - need electrons
y- root - en -x-yne
enantiomer
alcohol
electrophile
50. When bond angles deviate from ideal values
propionaldehyde
angle strain
ozonolysis
peroxycarboxylic acid