Alkanes conformations halogenation mechanisms, alkenes electrophilic addition Markownikoff rule ozonolysis polymerization - Question Bank
1. The IUPAC name of the product of ozonolysis of 2,4,4-trimethylpent-1-ene followed by reductive workup is:
2. The anti-Markownikoff addition of HBr to an alkene in the presence of peroxides proceeds via:
3. The mechanism of addition of H2O to alkenes in the presence of acid catalyst involves:
4. Which of the following is an example of condensation polymerization?
5. The process of breaking down larger hydrocarbon molecules into smaller, more useful ones is called:
6. In the electrophilic addition of HBr to 2-methylbut-2-ene, the major product is:
7. The addition of halogens to alkenes is an example of:
8. Which type of strain is present in the boat conformation of cyclohexane that is absent in the chair conformation?
9. The product of oxidative cleavage of 2,3-dimethylbut-2-ene using hot KMnO4 is:
10. The reaction of an alkene with KMnO4 under cold, dilute, alkaline conditions leads to:
11. Which of the following is a Ziegler-Natta catalyst used in alkene polymerization?
12. Ozonolysis of 2-methylbut-2-ene followed by reductive workup yields:
13. The electrophilic addition of water to ethene in the presence of an acid catalyst yields:
14. Free radical chlorination of cyclohexane primarily produces:
15. The interconversion of chair conformations of cyclohexane is called:
16. In the chair conformation of cyclohexane, axial and equatorial positions are:
17. Which conformation of cyclohexane is the most stable?
18. The anti-Markownikoff addition of HBr to 1-butene will primarily yield:
19. Which of the following is an example of a polymer derived from an alkene?
20. The structure of the repeating unit in polypropene is:
21. Which of the following is a common application of polyethene?
22. The process of formation of a polymer from monomers is called:
23. Free radical polymerization of alkenes is initiated by:
24. The monomer unit in polypropylene is:
25. Which type of polymerization is typically followed by ethene to form polyethene?
26. Polymerization of alkenes involves:
27. Which reagent is used for reductive workup after ozonolysis of alkenes?
28. Ozonolysis of cyclohexene followed by oxidative workup yields:
29. In the ozonolysis of propene followed by reductive workup (e.g., with Zn/H2O), the products are:
30. Ozonolysis of an alkene is used to determine:
31. The intermediate formed during the addition of bromine to ethene is a:
32. The addition of Br2 to ethene forms:
33. The addition of HBr to propene in the presence of peroxides follows:
34. Which of the following carbocations is the most stable?
35. Markownikoff's rule states that in the addition of HX to an unsymmetrical alkene, the hydrogen atom adds to the carbon atom that has:
36. The first step in the electrophilic addition of HBr to an alkene is:
37. Electrophilic addition to alkenes involves the attack of an electrophile on the:
38. Alkenes undergo which type of reaction primarily?
39. In the free radical chlorination of propane, which hydrogen is most likely to be substituted?
40. The order of reactivity of halogens in free radical halogenation of alkanes is:
41. Which of the following is the most stable free radical?
42. Why is free radical iodination of alkanes not synthetically useful?
43. The termination step in free radical halogenation involves:
44. Which of the following is a propagation step in the free radical bromination of ethane?
45. The initiation step in the free radical chlorination of methane involves:
46. Free radical halogenation of alkanes proceeds via which mechanism?
47. Which type of strain is primarily responsible for the difference in stability between eclipsed and staggered conformations of ethane?
48. The eclipsed conformation of ethane is less stable than the staggered conformation due to:
49. In the staggered conformation of ethane, the dihedral angle between adjacent C-H bonds is:
50. Which of the following is the most stable conformation of ethane?