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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. Compounds with halogen
catalytic hydrogenation
pyrolysis
Haloalkane
triple bond
2. Diols with hydroxyl group on adjacent carbon
enantiomer
vicinal
Haloalkane
aldehyde
3. Nucleus lover. electron rich species that are attracked to charged atoms
polymerization
nucleophile
propionaldehyde
reducing
4. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
Alkane nomenclature
relative configuration
disproportionation
electrophilic addition
5. Diol with hydroxyl group on same carbon
geminal
pyrolysis
initiation propagation termination
stereoisomers
6. Most favorable of staggared conformations
optical activity
sp2
reducing
anti conformation
7. Name for ethanal
formaldehyde
acetaldehyde
electrophilic addition
not ignored
8. Is bonded to only one other carbon atom
torsional strain
primary carbon
electrophilic addition
ozonolysis
9. Di - tri - t - sec - n -
ionic bond
Alkene
Ignored
polymerization
10. Refers to the =CH2 group
methylene
protic solvent
gauche conformation
formaldehyde
11. 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
catalytic hydrogenation
pi bond
halogenation
12. Functionality is specified by alkoxy- prefix. ROR
Alkene
polymerization
gauche conformation
ethers
13. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
acetaldehyde
carbonyl
relative configuration
absolute configuration
14. N - l - ml - ms
enantiomer
enantiomer
pyrolysis
quantum numbers
15. Not solvated
aprotic solvent
oxidation
primary carbon
pyrolysis
16. F - CL - Br - I
ketone
hybridization
achiral
halogen
17. 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.
electrophilic addition of free radicals
Ignored
relative configuration
molecular orbital
18. Name for mathanal
isomer
hydroboration
Combustion
formaldehyde
19. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
achiral
alcohol
polymerization
carboxylic acid
20. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
reducing
initiation propagation termination
electrophilic addition of X2
diol
21. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
initiation propagation termination
enantiomer
Alkyne
Combustion
22. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
hydroboration
allyl
basicity
specific rotation
23. M - chloroperoxybenzoic acid
stereoisomers
enantiomer
covalent bond
mcpba
24. Carbonyl located in middle or somewhere in chane. Named with One
protic solvent
covalent bond
Acetylene
ketone
25. Chain of carbons connected by single bonds with hydrogen atoms attached.
acetaldehyde
pyrolysis
electrophilic addition of HX
Alkane
26. Goal is to produce most stable carbocation
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27. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
mcpba
alkyne
stereoisomers
formaldehyde
28. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
Alkane
cold potassium permanganate
quantum numbers
relative configuration
29. 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.
quantum numbers
alcohol
diastereomers
geometric isomers
30. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
reducing
cold potassium permanganate
propionaldehyde
31. Hydrocarbon with one or more carbon carbon triple bond
alkyne
meso compound
potassium permanganate
ring flip
32. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
not ignored
amines
relative configuration
33. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
electrophilic addition of HX
aldehyde
mcpba
torsional strain
34. Arise from angle strain - torsional strian and nonbonded strain
ring strain
2^n
pi bond
geminal
35. Results when cyclic molecules must assume conformations that have eclipsed interactions
aprotic solvent
enantiomer
torsional strain
alkyne
36. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
alkyne
electrophilic addition of H2O
gauche conformation
pi bond
37. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
mcpba
carboxylic acid
sp
Haloalkane
38. Most similar. same molecule only at different points in their rotation. show them with newmans projections
polymerization
optical activity
conformational isomer
acetaldehyde
39. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
catalytic hydrogenation
disproportionation
configuration
sp
40. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
enantiomer
torsional strain
reducing
halogen
41. O3
ozonolysis
alkyne
configuration
electrophilic addition of HX
42. 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
alcohol
protic solvent
y- root - en -x-yne
2^n
43. 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
allyl
conformational isomer
geometric isomers
optical activity
44. One s and two p 120 degree apart
halogen
sigma bond
sp2
not ignored
45. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
gauche conformation
electrophilic addition
ethers
polymerization
46. Carbon carbon triple bonds. Suffix-yne.
Alkyne
combustion - disproportionation - free - radical substitution - pyrolysis
sigma bond
isomer
47. Spatial arrangement of the atoms or groups of a sterioisomer
geometric isomers
anti conformation
configuration
polymerization
48. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
cold potassium permanganate
ozonolysis
formaldehyde
molecular orbital
49. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
hydroboration
allyl
reducing
halogenation
50. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
geometric isomers
hot - acidic potassium permanganate
catalytic hydrogenation
Alkane