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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. Diol with hydroxyl group on same carbon
alcohol
Haloalkane
geminal
racemic mixture
2. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
polymerization
Alkyne
potassium permanganate
electrophilic addition
3. Combustion reaction occurs through a radical process
basicity
angle strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
acetaldehyde
4. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
basicity
angle strain
not ignored
y- root - en -x-yne
5. Name for mathanal
formaldehyde
C3H8 + 5O2 = 3CO2 + 4H2O + heat
protic solvent
ionic bond
6. Refers to the =CH2 group
weak bases
chiral
fischer projection
methylene
7. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
pi bond
electrophilic addition
enantiomer
basicity
8. Transfer of electrions from one atome to another
geometric isomers
polymerization
relative configuration
ionic bond
9. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
isomer
primary carbon
peroxycarboxylic acid
amines
10. Most similar. same molecule only at different points in their rotation. show them with newmans projections
weak bases
conformational isomer
chiral
quantum numbers
11. 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.
hydroboration
ketone
Vinyl
molecular orbital
12. Diols with hydroxyl group on adjacent carbon
basicity
ethers
vicinal
Alkene
13. Steps of free radical substitution
propionaldehyde
carbonyl
initiation propagation termination
diol
14. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
alkyne
pi bond
meso compound
catalytic hydrogenation
15. 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
saturated hydrocarbon
absolute configuration
catalytic hydrogenation
weak bases
16. Results when nonadjacent atoms or groups compete for space. dominant source of energy in flagpole interactions of the boat conformation. thus it goes in various conformations like chair boat and twist.
torsional strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
nonbonded strain
sp3
17. Zn/h or CH3/s with ozonolysis
achiral
reducing
basicity
catalytic hydrogenation
18. Hydrocarbon with one or more carbon carbon triple bond
alkyne
diol
absolute configuration
molecular orbital
19. Compounds with halogen
enantiomer
Haloalkane
formaldehyde
ozonolysis
20. Charged - need electrons
nucleophile
hybridization
electrophile
covalent bond
21. 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
formaldehyde
Ignored
gauche conformation
allyl
22. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
pi bond
sp
weak bases
halogen
23. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
Alkane
primary carbon
disproportionation
diol
24. Goal is to produce most stable carbocation
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25. Use the Greek root for the number of carbons followed by the ending - - ane
aldehyde
Alkane nomenclature
optical activity
diol
26. Kmno4
sp
specific rotation
ozonolysis
potassium permanganate
27. Carbon with four different substituents and lack a plane of symmetry
covalent bond
electrophilic addition of free radicals
chiral center
diol
28. Rotations cancel each other out therefore no optical activity
C3H8 + 5O2 = 3CO2 + 4H2O + heat
halogen
racemic mixture
enantiomer
29. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
electrophilic addition
specific rotation
Alkene
geminal
30. Arise from angle strain - torsional strian and nonbonded strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ring strain
Alkane nomenclature
geminal
31. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
markovnikov's rule
protic solvent
not ignored
32. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
alcohol
amines
lindlar's catalyst
enantiomer
33. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
ionic bond
propionaldehyde
isomer
34. 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.
nucleophile
enantiomer
anti conformation
diastereomers
35. One s and two p 120 degree apart
alcohol
carboxylic acid
sp2
lindlar's catalyst
36. Is bonded to only one other carbon atom
fischer projection
Combustion
structural isomers
primary carbon
37. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
achiral
ozonolysis
nucleophile
conformational isomer
38. Name for ethanal
triple bond
Alkane nomenclature
halogenation
acetaldehyde
39. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
electrophilic addition of X2
oxidizing
polymerization
markovnikov's rule
40. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
primary carbon
electrophilic addition of H2O
cold potassium permanganate
polymerization
41. Chain of carbons connected by single bonds with hydrogen atoms attached.
absolute configuration
C3H8 + 5O2 = 3CO2 + 4H2O + heat
Alkane
acetaldehyde
42. One s and three p orbitals
Alkene
markovnikov's rule
chiral center
sp3
43. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
basicity
gauche conformation
hydroboration
acetaldehyde
44. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
sp
vicinal
basicity
oxidation
45. When boat flips
nucleophile
ring flip
markovnikov's rule
protic solvent
46. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
combustion - disproportionation - free - radical substitution - pyrolysis
disproportionation
not ignored
cold potassium permanganate
47. Carbonyl located in middle or somewhere in chane. Named with One
not ignored
quantum numbers
ketone
acetaldehyde
48. Describes the exact spatial arrangement of groups of atoms independent of other molecules.
absolute configuration
nonbonded strain
oxidizing
Alkane
49. When bond angles deviate from ideal values
angle strain
Alkane
Alkene
oxidizing
50. Not solvated
Combustion
enantiomer
disproportionation
aprotic solvent