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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. 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
nonbonded strain
Combustion
allyl
propionaldehyde
2. Monosubstituted ethylene
Vinyl
halogen
hybridization
alcohol
3. No double bonds. it has the maximum number of hydrogens.
catalytic hydrogenation
sp
saturated hydrocarbon
electrophilic addition of X2
4. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
protic solvent
potassium permanganate
racemic mixture
disproportionation
5. Diol with hydroxyl group on same carbon
methylene
sp
geminal
chiral
6. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
electrophilic addition of HX
initiation propagation termination
saturated hydrocarbon
basicity
7. Name for ethanal
acetaldehyde
eclipsed conformation
ketone
hybridization
8. Carbonyl located in middle or somewhere in chane. Named with One
chiral center
ketone
potassium permanganate
absolute configuration
9. When boat flips
Ignored
diastereomers
structural isomers
ring flip
10. How many stereoisomers can a molecule have with n chiral centers
2^n
fischer projection
ring strain
diol
11. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
Vinyl
aprotic solvent
electrophilic addition of X2
electrophilic addition of HX
12. Steps of free radical substitution
oxidizing
initiation propagation termination
cold potassium permanganate
ozonolysis
13. What are the best leaving groups?
potassium permanganate
carbonyl
sigma bond
weak bases
14. A sigma bond and two pi bonds
Haloalkane
weak bases
triple bond
anti conformation
15. Iso - neo - cyclo
formaldehyde
saturated hydrocarbon
not ignored
ethers
16. A molecule with an internal plane of symmetry
ring strain
meso compound
oxidation
cold potassium permanganate
17. When bond angles deviate from ideal values
polymerization
conformational isomer
electrophilic addition of H2O
angle strain
18. Charged - need electrons
enantiomer
chiral center
halogen
electrophile
19. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
angle strain
absolute configuration
mcpba
sp
20. Rotations cancel each other out therefore no optical activity
angle strain
racemic mixture
pi bond
mcpba
21. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
not ignored
hot - acidic potassium permanganate
electrophilic addition
electrophile
22. Carbon double bonded to an oxygen
conformational isomer
nonbonded strain
carbonyl
sp2
23. Results when cyclic molecules must assume conformations that have eclipsed interactions
racemic mixture
optical activity
torsional strain
saturated hydrocarbon
24. What is produced when o3 with lialh4 or nabh4
structural isomers
oxidation
molecular orbital
alcohol
25. Name for propanal
propionaldehyde
ring strain
optical activity
halogenation
26. Lowest priority group projects into the page
fischer projection
absolute configuration
Vinyl
racemic mixture
27. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
geometric isomers
allyl
diol
Combustion
28. Is bonded to only one other carbon atom
diastereomers
primary carbon
electrophilic addition of X2
Alkane nomenclature
29. Formed by mixing different types of orbitals
halogen
hybridization
enantiomer
enantiomer
30. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
eclipsed conformation
Alkane
polymerization
disproportionation
31. 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.
catalytic hydrogenation
formaldehyde
molecular orbital
triple bond
32. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
relative configuration
sp
isomer
triple bond
33. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
absolute configuration
electrophile
electrophilic addition of free radicals
allyl
34. Methyl are 60 degrees apart. kinda stable
ring strain
gauche conformation
sigma bond
stereoisomers
35. 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
sp3
alkyne
markovnikov's rule
protic solvent
36. 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
structural isomers
catalytic hydrogenation
Haloalkane
halogen
37. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
absolute configuration
sigma bond
geometric isomers
electrophilic addition of X2
38. F - CL - Br - I
carbonyl
Vinyl
halogen
ketone
39. N - l - ml - ms
allyl
quantum numbers
potassium permanganate
methylene
40. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
Vinyl
achiral
hot - acidic potassium permanganate
allyl
41. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
Ignored
initiation propagation termination
enantiomer
Alkane nomenclature
42. Nucleus lover. electron rich species that are attracked to charged atoms
nucleophile
hydroboration
conformational isomer
initiation propagation termination
43. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
Alkane
aldehyde
geminal
Alkyne
44. Kmno4
ring flip
aprotic solvent
potassium permanganate
angle strain
45. 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
initiation propagation termination
fischer projection
Vinyl
pyrolysis
46. Use the Greek root for the number of carbons followed by the ending - - ane
anti conformation
hot - acidic potassium permanganate
Alkane nomenclature
sp2
47. Carbon with four different substituents and lack a plane of symmetry
propionaldehyde
sp
potassium permanganate
chiral center
48. Combustion reaction occurs through a radical process
alcohol
C3H8 + 5O2 = 3CO2 + 4H2O + heat
pi bond
ethers
49. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
molecular orbital
electrophilic addition of H2O
geminal
lindlar's catalyst
50. Sharing of electron between atoms
structural isomers
reducing
enantiomer
covalent bond