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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. Same molecular formula but different structure
isomer
enantiomer
covalent bond
potassium permanganate
2. If a compound is able to rotate plane polarized light.
optical activity
Alkene
sigma bond
gauche conformation
3. Diol with hydroxyl group on same carbon
geminal
ring strain
Haloalkane
hot - acidic potassium permanganate
4. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
electrophilic addition
combustion - disproportionation - free - radical substitution - pyrolysis
Combustion
stereoisomers
5. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart
markovnikov's rule
peroxycarboxylic acid
electrophilic addition of HX
sp
6. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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7. Nucleus lover. electron rich species that are attracked to charged atoms
acetaldehyde
nucleophile
alcohol
covalent bond
8. A molecule with an internal plane of symmetry
meso compound
polymerization
basicity
aldehyde
9. 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
aldehyde
primary carbon
covalent bond
10. Hydrocarbon with one or more carbon carbon triple bond
conformational isomer
specific rotation
achiral
alkyne
11. One s and two p 120 degree apart
electrophilic addition of H2O
sp2
isomer
hot - acidic potassium permanganate
12. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
methylene
electrophile
molecular orbital
13. Not solvated
aprotic solvent
aldehyde
geometric isomers
ring strain
14. 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
electrophilic addition of free radicals
protic solvent
chiral
allyl
15. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
peroxycarboxylic acid
structural isomers
halogen
triple bond
16. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
methylene
y- root - en -x-yne
Alkene
cold potassium permanganate
17. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.
potassium permanganate
oxidation
angle strain
polymerization
18. A sigma bond and two pi bonds
racemic mixture
quantum numbers
triple bond
hybridization
19. F - CL - Br - I
sp
potassium permanganate
halogen
gauche conformation
20. One s and three p orbitals
enantiomer
y- root - en -x-yne
weak bases
sp3
21. Results when cyclic molecules must assume conformations that have eclipsed interactions
propionaldehyde
Alkene
torsional strain
mcpba
22. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal
Alkane
hot - acidic potassium permanganate
aldehyde
covalent bond
23. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z
geometric isomers
pyrolysis
catalytic hydrogenation
electrophile
24. N - l - ml - ms
ethers
relative configuration
quantum numbers
fischer projection
25. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
meso compound
hot - acidic potassium permanganate
carboxylic acid
sp3
26. Name for mathanal
achiral
formaldehyde
ring strain
meso compound
27. 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.
gauche conformation
molecular orbital
methylene
formaldehyde
28. Kmno4
enantiomer
alcohol
potassium permanganate
achiral
29. Functionality is specified by alkoxy- prefix. ROR
structural isomers
relative configuration
2^n
ethers
30. Refers to the =CH2 group
structural isomers
primary carbon
methylene
oxidation
31. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon
y- root - en -x-yne
carboxylic acid
methylene
electrophilic addition of free radicals
32. When bond angles deviate from ideal values
nonbonded strain
ethers
angle strain
halogenation
33. Carbon carbon triple bonds. Suffix-yne.
Alkyne
pi bond
quantum numbers
disproportionation
34. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
angle strain
oxidation
halogenation
sp
35. Compounds with halogen
racemic mixture
Haloalkane
alkyne
peroxycarboxylic acid
36. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
stereoisomers
oxidation
ring flip
allyl
37. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
enantiomer
markovnikov's rule
sp3
ionic bond
38. Chain of carbons connected by single bonds with hydrogen atoms attached.
Alkyne
specific rotation
molecular orbital
Alkane
39. Carbonyl located in middle or somewhere in chane. Named with One
carbonyl
ketone
configuration
nonbonded strain
40. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
halogen
anti conformation
basicity
Haloalkane
41. Combustion reaction occurs through a radical process
sp
C3H8 + 5O2 = 3CO2 + 4H2O + heat
weak bases
sp3
42. Share molecular formula but have different chemical and physical properties
chiral center
Alkene
structural isomers
triple bond
43. Charged - need electrons
electrophile
carbonyl
alkyne
markovnikov's rule
44. How many stereoisomers can a molecule have with n chiral centers
amines
2^n
aprotic solvent
optical activity
45. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
oxidation
pyrolysis
electrophile
46. Transfer of electrions from one atome to another
electrophile
electrophilic addition of HX
combustion - disproportionation - free - radical substitution - pyrolysis
ionic bond
47. Diols with hydroxyl group on adjacent carbon
ozonolysis
markovnikov's rule
vicinal
stereoisomers
48. A = observed rotation / concentration * length
specific rotation
basicity
methylene
markovnikov's rule
49. Steps of free radical substitution
molecular orbital
initiation propagation termination
reducing
enantiomer
50. 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
hydroboration
Alkyne
structural isomers