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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.
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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. 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-
catalytic hydrogenation
amines
meso compound
sp
2. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced
weak bases
catalytic hydrogenation
hydroboration
conformational isomer
3. Transfer of electrions from one atome to another
sp2
ionic bond
ketone
electrophilic addition of HX
4. 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
pyrolysis
electrophilic addition of HX
configuration
molecular orbital
5. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
acetaldehyde
electrophilic addition
peroxycarboxylic acid
nucleophile
6. Common name for ethyne
electrophilic addition of free radicals
Acetylene
aldehyde
carboxylic acid
7. 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
markovnikov's rule
diol
electrophile
8. Most favorable of staggared conformations
anti conformation
potassium permanganate
achiral
disproportionation
9. Rotations cancel each other out therefore no optical activity
racemic mixture
eclipsed conformation
geometric isomers
C3H8 + 5O2 = 3CO2 + 4H2O + heat
10. Spatial arrangement of the atoms or groups of a sterioisomer
geminal
configuration
Alkane nomenclature
anti conformation
11. Nucleus lover. electron rich species that are attracked to charged atoms
weak bases
nucleophile
methylene
triple bond
12. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
nucleophile
chiral
pyrolysis
electrophilic addition of HX
13. Compounds with halogen
diastereomers
racemic mixture
hybridization
Haloalkane
14. Combustion reaction occurs through a radical process
enantiomer
Ignored
C3H8 + 5O2 = 3CO2 + 4H2O + heat
hot - acidic potassium permanganate
15. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
diastereomers
halogenation
methylene
racemic mixture
16. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
hydroboration
configuration
protic solvent
Combustion
17. Carbon double bonded to an oxygen
weak bases
basicity
ethers
carbonyl
18. When boat flips
structural isomers
ring flip
carboxylic acid
halogen
19. Sharing of electron between atoms
peroxycarboxylic acid
allyl
covalent bond
specific rotation
20. Carbonyl located in middle or somewhere in chane. Named with One
chiral center
sigma bond
Combustion
ketone
21. Highest energy no separation. or 120 separation.
ionic bond
alkyne
meso compound
eclipsed conformation
22. Name for mathanal
carbonyl
racemic mixture
formaldehyde
triple bond
23. A sigma bond and two pi bonds
mcpba
triple bond
structural isomers
quantum numbers
24. Monosubstituted ethylene
Vinyl
meso compound
enantiomer
torsional strain
25. Hydrocarbon with one or more carbon carbon triple bond
catalytic hydrogenation
alkyne
Alkane nomenclature
racemic mixture
26. Results when cyclic molecules must assume conformations that have eclipsed interactions
torsional strain
Alkyne
racemic mixture
anti conformation
27. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
ring flip
oxidizing
weak bases
initiation propagation termination
28. Carbon with four different substituents and lack a plane of symmetry
quantum numbers
Vinyl
chiral center
hybridization
29. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
ketone
torsional strain
meso compound
cold potassium permanganate
30. N - l - ml - ms
quantum numbers
basicity
Alkane nomenclature
acetaldehyde
31. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
aldehyde
nucleophile
electrophilic addition of HX
achiral
32. Kmno4
stereoisomers
electrophilic addition
protic solvent
potassium permanganate
33. 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
protic solvent
optical activity
pi bond
absolute configuration
34. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
2^n
ring strain
protic solvent
Alkene
35. Refers to the =CH2 group
methylene
ozonolysis
ozonolysis
isomer
36. When bond angles deviate from ideal values
isomer
angle strain
polymerization
Acetylene
37. Diols with hydroxyl group on adjacent carbon
cold potassium permanganate
vicinal
combustion - disproportionation - free - radical substitution - pyrolysis
electrophilic addition of free radicals
38. Use the Greek root for the number of carbons followed by the ending - - ane
sigma bond
Alkane nomenclature
aprotic solvent
hydroboration
39. Functionality is specified by alkoxy- prefix. ROR
covalent bond
ethers
chiral
lindlar's catalyst
40. 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
catalytic hydrogenation
Alkene
geometric isomers
lindlar's catalyst
41. O3
gauche conformation
hydroboration
methylene
ozonolysis
42. One s and two p 120 degree apart
sp2
initiation propagation termination
optical activity
gauche conformation
43. If a compound is able to rotate plane polarized light.
Alkane nomenclature
primary carbon
optical activity
ozonolysis
44. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
alkyne
Acetylene
Vinyl
electrophilic addition of H2O
45. Carbon carbon triple bonds. Suffix-yne.
primary carbon
Alkyne
2^n
sigma bond
46. Charged - need electrons
alkyne
electrophile
carboxylic acid
electrophilic addition of HX
47. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkane
eclipsed conformation
anti conformation
polymerization
48. 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.
ozonolysis
nonbonded strain
Ignored
specific rotation
49. Goal is to produce most stable carbocation
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50. 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
carbonyl
nucleophile
sp
allyl