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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. M - chloroperoxybenzoic acid
sigma bond
Ignored
reducing
mcpba
2. Zn/h or CH3/s with ozonolysis
reducing
mcpba
nucleophile
diol
3. O3
polymerization
ozonolysis
nucleophile
enantiomer
4. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
halogen
ethers
optical activity
5. If reagent has a bunch of oxygen
peroxycarboxylic acid
oxidation
oxidizing
Alkene
6. Steps of free radical substitution
ethers
sp
initiation propagation termination
nucleophile
7. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
ozonolysis
enantiomer
ionic bond
vicinal
8. Results when cyclic molecules must assume conformations that have eclipsed interactions
torsional strain
anti conformation
molecular orbital
propionaldehyde
9. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
disproportionation
alcohol
Acetylene
isomer
10. No double bonds. it has the maximum number of hydrogens.
saturated hydrocarbon
aldehyde
ring flip
ethers
11. Rotations cancel each other out therefore no optical activity
anti conformation
weak bases
chiral
racemic mixture
12. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
alkyne
reducing
achiral
optical activity
13. Goal is to produce most stable carbocation
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14. 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-
sp
protic solvent
gauche conformation
amines
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
cold potassium permanganate
catalytic hydrogenation
carboxylic acid
saturated hydrocarbon
16. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
chiral center
isomer
Combustion
Alkane
17. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
carbonyl
ketone
geometric isomers
C3H8 + 5O2 = 3CO2 + 4H2O + heat
18. Monosubstituted ethylene
Vinyl
y- root - en -x-yne
markovnikov's rule
Combustion
19. 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
Alkane nomenclature
nonbonded strain
markovnikov's rule
allyl
20. When bond angles deviate from ideal values
sp2
angle strain
electrophilic addition of H2O
acetaldehyde
21. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
eclipsed conformation
protic solvent
sp
carboxylic acid
22. Formed by mixing different types of orbitals
disproportionation
reducing
hybridization
weak bases
23. N - l - ml - ms
pyrolysis
hot - acidic potassium permanganate
quantum numbers
Ignored
24. F - CL - Br - I
halogen
carboxylic acid
y- root - en -x-yne
stereoisomers
25. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
sp2
angle strain
oxidizing
ozonolysis
26. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
oxidation
catalytic hydrogenation
electrophilic addition of free radicals
electrophilic addition of H2O
27. Compounds with halogen
electrophile
Haloalkane
potassium permanganate
quantum numbers
28. Carbon double bonded to an oxygen
molecular orbital
carbonyl
ozonolysis
Combustion
29. Name for propanal
nonbonded strain
carboxylic acid
basicity
propionaldehyde
30. Use the Greek root for the number of carbons followed by the ending - - ane
halogen
Alkene
Alkane nomenclature
combustion - disproportionation - free - radical substitution - pyrolysis
31. Two hydroxyl groups
aldehyde
diol
alkyne
achiral
32. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
isomer
protic solvent
stereoisomers
molecular orbital
33. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
ethers
pi bond
halogen
ozonolysis
34. Iso - neo - cyclo
gauche conformation
not ignored
carbonyl
structural isomers
35. Refers to the =CH2 group
ring strain
cold potassium permanganate
enantiomer
methylene
36. Carbon carbon triple bonds. Suffix-yne.
Combustion
Alkyne
covalent bond
halogenation
37. A molecule with an internal plane of symmetry
fischer projection
meso compound
propionaldehyde
configuration
38. What is produced when o3 with lialh4 or nabh4
reducing
allyl
halogenation
alcohol
39. 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.
disproportionation
quantum numbers
geometric isomers
diastereomers
40. 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
diastereomers
angle strain
C3H8 + 5O2 = 3CO2 + 4H2O + heat
41. Lowest priority group projects into the page
fischer projection
ionic bond
halogen
enantiomer
42. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
alkyne
eclipsed conformation
Alkyne
sigma bond
43. 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
stereoisomers
chiral
pyrolysis
methylene
44. A sigma bond and two pi bonds
alkyne
sp2
triple bond
2^n
45. Name for mathanal
alcohol
y- root - en -x-yne
fischer projection
formaldehyde
46. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
aldehyde
achiral
Haloalkane
sigma bond
47. Not solvated
aprotic solvent
fischer projection
sp3
oxidizing
48. 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
configuration
Haloalkane
anti conformation
49. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
potassium permanganate
electrophilic addition of H2O
pi bond
diastereomers
50. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
sp2
sigma bond
polymerization
aldehyde