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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. Functionality is specified by alkoxy- prefix. ROR
protic solvent
alkyne
covalent bond
ethers
2. Use the Greek root for the number of carbons followed by the ending - - ane
torsional strain
primary carbon
absolute configuration
Alkane nomenclature
3. 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
aprotic solvent
weak bases
optical activity
4. Two hydroxyl groups
anti conformation
hot - acidic potassium permanganate
oxidizing
diol
5. Carbon double bonded to an oxygen
formaldehyde
vicinal
pi bond
carbonyl
6. Name for propanal
sp3
hot - acidic potassium permanganate
Vinyl
propionaldehyde
7. 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
chiral center
weak bases
structural isomers
8. Iso - neo - cyclo
propionaldehyde
specific rotation
not ignored
hydroboration
9. Arise from angle strain - torsional strian and nonbonded strain
hot - acidic potassium permanganate
ring strain
primary carbon
ring flip
10. Same molecular formula but different structure
isomer
fischer projection
hot - acidic potassium permanganate
electrophilic addition
11. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
torsional strain
pyrolysis
carboxylic acid
covalent bond
12. 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
geometric isomers
acetaldehyde
protic solvent
13. One s and three p orbitals
sp3
combustion - disproportionation - free - radical substitution - pyrolysis
oxidizing
conformational isomer
14. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
isomer
structural isomers
enantiomer
geometric isomers
15. When bond angles deviate from ideal values
combustion - disproportionation - free - radical substitution - pyrolysis
Alkane nomenclature
angle strain
carboxylic acid
16. One s and two p 120 degree apart
Vinyl
sp2
pi bond
electrophilic addition of X2
17. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
optical activity
ring flip
primary carbon
18. Zn/h or CH3/s with ozonolysis
configuration
initiation propagation termination
y- root - en -x-yne
reducing
19. Di - tri - t - sec - n -
methylene
Ignored
hybridization
racemic mixture
20. 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-
enantiomer
amines
isomer
Alkane nomenclature
21. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
combustion - disproportionation - free - radical substitution - pyrolysis
Haloalkane
achiral
peroxycarboxylic acid
22. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
relative configuration
torsional strain
stereoisomers
formaldehyde
23. Refers to the =CH2 group
pi bond
absolute configuration
methylene
configuration
24. O3
diastereomers
ozonolysis
polymerization
protic solvent
25. Sharing of electron between atoms
nucleophile
Alkene
covalent bond
torsional strain
26. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
Alkene
combustion - disproportionation - free - radical substitution - pyrolysis
nonbonded strain
27. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
markovnikov's rule
Vinyl
vicinal
electrophilic addition of free radicals
28. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
Ignored
angle strain
absolute configuration
pi bond
29. Is bonded to only one other carbon atom
anti conformation
enantiomer
configuration
primary carbon
30. Diol with hydroxyl group on same carbon
eclipsed conformation
formaldehyde
geminal
disproportionation
31. Compounds with halogen
sp3
Haloalkane
halogen
optical activity
32. If a compound is able to rotate plane polarized light.
electrophilic addition
vicinal
optical activity
geminal
33. When boat flips
angle strain
catalytic hydrogenation
structural isomers
ring flip
34. Steps of free radical substitution
stereoisomers
initiation propagation termination
geometric isomers
isomer
35. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
protic solvent
pi bond
peroxycarboxylic acid
Alkane nomenclature
36. Most favorable of staggared conformations
anti conformation
meso compound
primary carbon
methylene
37. What is produced when o3 with lialh4 or nabh4
conformational isomer
alcohol
racemic mixture
mcpba
38. F - CL - Br - I
hot - acidic potassium permanganate
absolute configuration
halogen
aprotic solvent
39. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
y- root - en -x-yne
potassium permanganate
covalent bond
geminal
40. 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.
eclipsed conformation
disproportionation
nonbonded strain
electrophilic addition
41. 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
reducing
electrophilic addition of free radicals
enantiomer
42. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
Vinyl
pi bond
electrophilic addition of H2O
nucleophile
43. Charged - need electrons
electrophile
Alkene
absolute configuration
chiral center
44. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
hot - acidic potassium permanganate
ethers
electrophilic addition of HX
ring flip
45. Transfer of electrions from one atome to another
covalent bond
isomer
conformational isomer
ionic bond
46. Carbonyl located in middle or somewhere in chane. Named with One
sp
isomer
ketone
sp2
47. A sigma bond and two pi bonds
initiation propagation termination
combustion - disproportionation - free - radical substitution - pyrolysis
triple bond
aldehyde
48. A molecule with an internal plane of symmetry
alcohol
meso compound
Alkyne
electrophilic addition of HX
49. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
ring flip
Alkene
Alkane nomenclature
50. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
catalytic hydrogenation
sp
Combustion
weak bases