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Test your basic knowledge |
MCAT Organic Chemistry
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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. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
formaldehyde
quantum numbers
electrophilic addition of free radicals
propionaldehyde
2. Object that is not superimposable upon mirror image
chiral
peroxycarboxylic acid
enantiomer
potassium permanganate
3. A = observed rotation / concentration * length
y- root - en -x-yne
geminal
chiral center
specific rotation
4. When bond angles deviate from ideal values
disproportionation
weak bases
hot - acidic potassium permanganate
angle strain
5. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
propionaldehyde
lindlar's catalyst
covalent bond
relative configuration
6. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
achiral
meso compound
optical activity
geometric isomers
7. O3
electrophile
aldehyde
potassium permanganate
ozonolysis
8. Alphabetical order of alkane rxn
combustion - disproportionation - free - radical substitution - pyrolysis
basicity
sp2
formaldehyde
9. Use the Greek root for the number of carbons followed by the ending - - ane
ethers
Alkane nomenclature
Ignored
ketone
10. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
ozonolysis
aldehyde
sp
geometric isomers
11. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
gauche conformation
Alkene
pi bond
peroxycarboxylic acid
12. 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
enantiomer
oxidizing
covalent bond
pyrolysis
13. No double bonds. it has the maximum number of hydrogens.
saturated hydrocarbon
anti conformation
carboxylic acid
ethers
14. Rotations cancel each other out therefore no optical activity
halogenation
racemic mixture
pi bond
ethers
15. Compounds with halogen
electrophilic addition of H2O
Haloalkane
primary carbon
nonbonded strain
16. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
Alkane
2^n
saturated hydrocarbon
carboxylic acid
17. Carbonyl located in middle or somewhere in chane. Named with One
ketone
electrophilic addition of X2
initiation propagation termination
optical activity
18. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
enantiomer
triple bond
hot - acidic potassium permanganate
pyrolysis
19. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
electrophilic addition of X2
isomer
disproportionation
pi bond
20. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
fischer projection
electrophilic addition
weak bases
hydroboration
21. Highest energy no separation. or 120 separation.
halogen
eclipsed conformation
basicity
absolute configuration
22. One s and three p orbitals
optical activity
sp3
achiral
weak bases
23. Functionality is specified by alkoxy- prefix. ROR
ethers
saturated hydrocarbon
conformational isomer
nucleophile
24. When boat flips
pyrolysis
alcohol
torsional strain
ring flip
25. 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-
amines
Alkane
racemic mixture
carboxylic acid
26. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton
hot - acidic potassium permanganate
sp3
chiral
markovnikov's rule
27. Diols with hydroxyl group on adjacent carbon
vicinal
oxidation
electrophilic addition of free radicals
relative configuration
28. Hydrocarbon with one or more carbon carbon triple bond
alkyne
allyl
Alkane
electrophilic addition of H2O
29. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene
formaldehyde
propionaldehyde
acetaldehyde
disproportionation
30. Goal is to produce most stable carbocation
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31. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
diastereomers
electrophilic addition of X2
saturated hydrocarbon
ozonolysis
32. A sigma bond and two pi bonds
reducing
triple bond
ethers
hybridization
33. Two hydroxyl groups
electrophilic addition of HX
diol
specific rotation
hydroboration
34. 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
potassium permanganate
enantiomer
aprotic solvent
35. Lowest priority group projects into the page
covalent bond
ozonolysis
fischer projection
methylene
36. If a compound is able to rotate plane polarized light.
primary carbon
optical activity
torsional strain
chiral
37. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
initiation propagation termination
amines
y- root - en -x-yne
potassium permanganate
38. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
halogenation
ionic bond
chiral center
sp2
39. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
alcohol
sigma bond
anti conformation
basicity
40. Refers to the =CH2 group
methylene
torsional strain
pi bond
racemic mixture
41. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
quantum numbers
enantiomer
electrophilic addition of HX
angle strain
42. Same molecular formula but different structure
halogenation
ionic bond
isomer
alcohol
43. Combustion reaction occurs through a radical process
oxidation
markovnikov's rule
structural isomers
C3H8 + 5O2 = 3CO2 + 4H2O + heat
44. 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
electrophilic addition of HX
angle strain
lindlar's catalyst
45. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
achiral
sp
peroxycarboxylic acid
triple bond
46. Diol with hydroxyl group on same carbon
geminal
vicinal
eclipsed conformation
achiral
47. Steps of free radical substitution
y- root - en -x-yne
initiation propagation termination
chiral
cold potassium permanganate
48. Sharing of electron between atoms
structural isomers
Alkyne
covalent bond
aldehyde
49. 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
protic solvent
electrophilic addition of H2O
allyl
acetaldehyde
50. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
achiral
sp2
stereoisomers
angle strain