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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. Name for mathanal
carboxylic acid
isomer
anti conformation
formaldehyde
2. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule
allyl
chiral center
meso compound
electrophilic addition of HX
3. Results when cyclic molecules must assume conformations that have eclipsed interactions
markovnikov's rule
nucleophile
torsional strain
hot - acidic potassium permanganate
4. How many stereoisomers can a molecule have with n chiral centers
alcohol
2^n
specific rotation
optical activity
5. Combustion reaction occurs through a radical process
markovnikov's rule
Ignored
C3H8 + 5O2 = 3CO2 + 4H2O + heat
oxidation
6. Is bonded to only one other carbon atom
hydroboration
primary carbon
lindlar's catalyst
electrophilic addition of X2
7. Methyl are 60 degrees apart. kinda stable
aldehyde
gauche conformation
saturated hydrocarbon
markovnikov's rule
8. A molecule with an internal plane of symmetry
meso compound
geometric isomers
weak bases
relative configuration
9. What is produced when o3 with lialh4 or nabh4
ozonolysis
hybridization
potassium permanganate
alcohol
10. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
nonbonded strain
lindlar's catalyst
carboxylic acid
Ignored
11. Share molecular formula but have different chemical and physical properties
stereoisomers
electrophile
carbonyl
structural isomers
12. Carbon with four different substituents and lack a plane of symmetry
chiral center
pyrolysis
enantiomer
Acetylene
13. Common name for ethyne
catalytic hydrogenation
Acetylene
meso compound
anti conformation
14. Highest energy no separation. or 120 separation.
stereoisomers
sp3
meso compound
eclipsed conformation
15. Diol with hydroxyl group on same carbon
chiral center
geminal
polymerization
ethers
16. Carbon carbon triple bonds. Suffix-yne.
disproportionation
chiral
geometric isomers
Alkyne
17. Iso - neo - cyclo
potassium permanganate
not ignored
nonbonded strain
Alkyne
18. Functionality is specified by alkoxy- prefix. ROR
fischer projection
sp2
ethers
torsional strain
19. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.
racemic mixture
Haloalkane
electrophilic addition
allyl
20. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain
electrophilic addition
y- root - en -x-yne
electrophilic addition of free radicals
methylene
21. Most similar. same molecule only at different points in their rotation. show them with newmans projections
markovnikov's rule
Acetylene
conformational isomer
hybridization
22. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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23. Refers to the =CH2 group
methylene
basicity
formaldehyde
electrophile
24. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
polymerization
ozonolysis
weak bases
molecular orbital
25. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
configuration
racemic mixture
ionic bond
26. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
pi bond
markovnikov's rule
nonbonded strain
aprotic solvent
27. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
isomer
basicity
formaldehyde
oxidation
28. 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.
electrophilic addition
electrophilic addition of X2
geminal
molecular orbital
29. N - l - ml - ms
amines
structural isomers
quantum numbers
methylene
30. Nucleus lover. electron rich species that are attracked to charged atoms
oxidizing
alcohol
conformational isomer
nucleophile
31. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans
lindlar's catalyst
oxidizing
not ignored
electrophilic addition of X2
32. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
enantiomer
ozonolysis
electrophile
saturated hydrocarbon
33. 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-
ketone
relative configuration
amines
oxidation
34. Alphabetical order of alkane rxn
ionic bond
y- root - en -x-yne
stereoisomers
combustion - disproportionation - free - radical substitution - pyrolysis
35. 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
hybridization
initiation propagation termination
angle strain
allyl
36. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
oxidizing
halogen
diastereomers
electrophilic addition of free radicals
37. Lowest priority group projects into the page
triple bond
pyrolysis
fischer projection
chiral center
38. A = observed rotation / concentration * length
2^n
not ignored
specific rotation
primary carbon
39. 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
isomer
potassium permanganate
formaldehyde
enantiomer
40. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
Vinyl
geometric isomers
oxidation
y- root - en -x-yne
41. 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
Combustion
torsional strain
protic solvent
42. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
lindlar's catalyst
oxidizing
triple bond
sp
43. Use the Greek root for the number of carbons followed by the ending - - ane
electrophilic addition
Alkane nomenclature
alkyne
methylene
44. Two hydroxyl groups
conformational isomer
diol
initiation propagation termination
hot - acidic potassium permanganate
45. One s and two p 120 degree apart
sp2
carboxylic acid
not ignored
methylene
46. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
sp3
electrophile
sigma bond
vicinal
47. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
fischer projection
diastereomers
peroxycarboxylic acid
configuration
48. Carbon double bonded to an oxygen
carbonyl
ethers
stereoisomers
Acetylene
49. Charged - need electrons
catalytic hydrogenation
electrophile
ozonolysis
y- root - en -x-yne
50. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc
conformational isomer
optical activity
meso compound
relative configuration