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alkyl halides test > practice tests > home      

Alkyl halides test

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Difficulty Rating:
easy= easy
mediummedium= medium
hardhardhard = hard
extremely hardextremely hardextremely hardextremely hard= extremely hard

1. Which of the following alkyl bromides will undergo the Sn2
reaction the fastest?easy
(see here for explanation)

butyl bromide
neopentyl bromide
t-butyl bromide
2-bromobutate

2. Rank the following carbocations in order of increasing
stability (least stable to most stable)easy
secondary cation primary cation tertiary cation
1 2 3

1, 3, 2
1, 2, 3
3, 2, 1
2, 1, 3
2, 3, 1



3. Of the carbocations in question 2, which ones are prone to
rearangement?mediummedium
 1 and 2
1 only
2 only
2 and 3
None of them will rearange


4. What is a product of the following reaction:
alkene bromination mediummedium
a
 b
c d


5. What is the major product of the following reaction?
2-bromobutane and t-butoxidemediummedium
substitution product

elimination product
 None of the Above
6. Which is the major product of the following reaction?
deuterium or hydrogen?hardhardhard
a
b
7. How many potential E2 elimination products can form from the addition of NaOH to the following: (free hint: trans-decalin cannot undergo a ring flip) hardhardhardhard
elimination reaction
1
2
3
No Elimination Products are Possible
8. Which of the following alkyl halides will react more quickly
in the E1 reactionmediummedium
(see here for more)


butyl bromide
neopentyl bromide
t-butyl bromide
2-bromobutate
9. Free radical chlorination (Cl2, hv) is not very selective. Which of the following compounds will give the most selective mono-chlorination (ie. only one product)?hardhardhard

pentane

heptene

propyl benzene

10. What compound could not be a product of the following reaction?

extremely hardextremely hardextremely hardextremely hard
All can be products  




**Note: Grader will only explain incorrect answers**
Grading Scale
A 80-100 Outstanding
B 70-79 Very Good
C 60-69 Average
D 50-59 Below Average
F Below 50 Need More Work

 
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