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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. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'
specific rotation
Alkene
mcpba
fischer projection
2. Not solvated
electrophilic addition of free radicals
aprotic solvent
potassium permanganate
disproportionation
3. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition
oxidizing
Acetylene
Alkane nomenclature
torsional strain
4. M - chloroperoxybenzoic acid
basicity
mcpba
C3H8 + 5O2 = 3CO2 + 4H2O + heat
ionic bond
5. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space
stereoisomers
structural isomers
electrophilic addition of HX
aldehyde
6. Arise from angle strain - torsional strian and nonbonded strain
ring strain
sp2
oxidation
electrophilic addition of X2
7. 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
angle strain
torsional strain
pyrolysis
structural isomers
8. A molecule with an internal plane of symmetry
fischer projection
structural isomers
meso compound
cold potassium permanganate
9. Carbonyl located in middle or somewhere in chane. Named with One
allyl
ketone
aldehyde
sp3
10. Most similar. same molecule only at different points in their rotation. show them with newmans projections
ozonolysis
carbonyl
2^n
conformational isomer
11. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image
ionic bond
achiral
structural isomers
stereoisomers
12. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.
y- root - en -x-yne
primary carbon
acetaldehyde
carboxylic acid
13. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol
electrophilic addition of H2O
sp3
carbonyl
electrophilic addition
14. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.
hydroboration
ring flip
disproportionation
pi bond
15. Kmno4
lindlar's catalyst
structural isomers
electrophilic addition of X2
potassium permanganate
16. No double bonds. it has the maximum number of hydrogens.
peroxycarboxylic acid
saturated hydrocarbon
sp2
stereoisomers
17. Most favorable of staggared conformations
anti conformation
electrophilic addition of X2
oxidation
aldehyde
18. 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
Combustion
carbonyl
ionic bond
19. When boat flips
ring flip
geminal
angle strain
specific rotation
20. Rotations cancel each other out therefore no optical activity
initiation propagation termination
racemic mixture
electrophilic addition of free radicals
nonbonded strain
21. Name for mathanal
acetaldehyde
hydroboration
formaldehyde
electrophile
22. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.
molecular orbital
electrophilic addition of H2O
absolute configuration
enantiomer
23. Same molecular formula but different structure
ethers
isomer
oxidation
carbonyl
24. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane
amines
racemic mixture
combustion - disproportionation - free - radical substitution - pyrolysis
peroxycarboxylic acid
25. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4
covalent bond
ozonolysis
basicity
alcohol
26. Use the Greek root for the number of carbons followed by the ending - - ane
Alkane nomenclature
absolute configuration
weak bases
hybridization
27. A sigma bond and two pi bonds
polymerization
disproportionation
triple bond
sp2
28. Carbon double bonded to an oxygen
carbonyl
primary carbon
Acetylene
stereoisomers
29. 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
triple bond
catalytic hydrogenation
electrophilic addition of H2O
30. Two hydroxyl groups
ozonolysis
diol
y- root - en -x-yne
quantum numbers
31. Carbon carbon triple bonds. Suffix-yne.
combustion - disproportionation - free - radical substitution - pyrolysis
Alkyne
enantiomer
diol
32. N - l - ml - ms
diastereomers
torsional strain
2^n
quantum numbers
33. A = observed rotation / concentration * length
reducing
electrophilic addition of H2O
specific rotation
halogenation
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
optical activity
initiation propagation termination
halogen
hydroboration
35. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.
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36. What is produced when o3 with lialh4 or nabh4
torsional strain
alcohol
saturated hydrocarbon
halogenation
37. O3
ozonolysis
carboxylic acid
Acetylene
isomer
38. Combustion reaction occurs through a radical process
pi bond
C3H8 + 5O2 = 3CO2 + 4H2O + heat
oxidation
Alkane
39. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation
pi bond
cold potassium permanganate
alcohol
ionic bond
40. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution
alcohol
halogenation
Alkyne
formaldehyde
41. Results when cyclic molecules must assume conformations that have eclipsed interactions
quantum numbers
absolute configuration
torsional strain
sigma bond
42. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O
basicity
ionic bond
pyrolysis
electrophile
43. Compounds with halogen
Haloalkane
conformational isomer
molecular orbital
geminal
44. How many stereoisomers can a molecule have with n chiral centers
2^n
disproportionation
covalent bond
Ignored
45. Name for propanal
diol
propionaldehyde
molecular orbital
hydroboration
46. If reagent has a bunch of oxygen
oxidation
alcohol
hybridization
triple bond
47. Functionality is specified by alkoxy- prefix. ROR
pyrolysis
ethers
electrophile
ketone
48. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.
angle strain
sigma bond
Alkane
diol
49. 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
quantum numbers
disproportionation
protic solvent
methylene
50. Reaction of alkane with oxygen to form carbon dioxide - water and heat.
Combustion
specific rotation
oxidizing
stereoisomers