ASSIGNMENT 7
(Based on Chapters 7 and 8)
Due Date: Monday 29th March 2021, 11:59 PM (No extensions will be allowed)
1. Consider the reaction of CH3CH2Br and OH-. Assuming no other changes, what effect does
simultaneously doubling the concentrations of CH3CH2Br and OH- have?
a. No effect
. Increasing the rate two times
c. Increasing the rate four times
d. Increasing the rate six times
2. Which is the major product of the following reaction?
3. What is the major product of the following reaction?
a. 1
. 2
c. 3
d. 4
4. What is/are the major products obtained from the following reaction?
a. Only 1
. Only 2
c. Only 3
d. 1 and 2
5. What is the best choice of reagent(s) to perform the following reaction so the product, as
shown, is formed exclusively?
a. H2O, H2SO4
. Hg(OAc)2 and H2O; followed by NaBH4
c. BH3; followed by H2O2, NaOH
d. OsO4; followed by NaHSO3
6. How does a polar protic solvent hinder SN2 reactions?
a. By solvation of the nucleophile
. By helping the leaving groups leave
c. By solvation of the alkyl halide
d. By creating a hindrance to the leaving group
7. Predict the major product(s) from the reaction shown.
8. Which of the following alkyl halides gives the fastest SN1 reaction?
9. What is/are the major products obtained from the following reaction?
a. Only 1
. Only 2
c. Only 3
d. 1 and 2
10. All of the following have products that follow anti-addition except:
a. Halohydrin formation
. Halogenation
c. Hydroboration
d. Oxymercuration-demercuration
11. Which of the following statements is true?
a. Ozonolysis of alkenes will produce ketones/aldehydes as products
. HBr (in presence of peroxides) will follow Markovnikov addition
c. KMNO4 can be used as a solvent at any temperature in syn-dihydroxylation
d. Hydroboration results in anti-Markovnikov regioselectivity as well as anti-addition over
the alkene
12. From the options given, which is NOT a product of the oxidative cleavage reaction below?
13. Which of the following ions is the strongest nucleophile in an aqueous solution?
14. What is the stability order of these alkenes?
15. A molecular rea
angement occurs in this reaction. What is the expected major rea
anged
product?
16. Which of the following compounds is protic?
17. Which of the following represent the transition state of the reaction between methyl
iodide and sodium methiolate, NaSCH3?
18. Predict the major product(s) of the following reaction.
19. Which of the following statements is true about SN1 reactions of alkyl halides in general?
Select all that apply.
20. Which of the following alkyl halides yields only (CH2)2CHCH=CH2 when
dehydrohalogenated?