CHM203

1. Unbranched isomer has higher _________ than branched isomer

2. In terms of steric effect _________ geometric isomer is more stable.

3. Another name for methyl benzene is __________

4. The stronger an acid the ___________ is its conjugate base

5. Reduction of benzene is by __________ of benzene.

6. A side reaction that occurs during substitution reactions of alkyl halides is _________

7. The substitution of an acyl group into an aromatic ring by the reaction with an acid chloride in the presence of Lewis acid is called ____________

8. The influence of the inductive effect on acid strength is almost negligible after the __________ carbon in the chain.

9. The rule that states that in a dehydrohalogenation reaction of alkyl halides, the major product will be the product that has the more alkyl groups attached to the resultant carbon - carbon double bond is __________ rule.

10. The extent to which acids transfer a proton to a standard base determines __________

11. The cannonical forms of  benzene were proposed by _____________

12. The reaction in which aryl halides are formed from aromatic amines is called _________

13. The benzenoid hydrocarbons in which two or more benzene rings are fused together at ortho position in such a way that each pair of rings shares rings shares two carbons are called ---------- benzenoid hydrocarbon.

14. Two factors that affect the boiling point of a substance are ________ and _________

15. In terms of steric effect,  conformational isomer is __________ more stable.

16. Sulphonation of benzene yields ___________

17. A benzenoid hydrocarbon in which two benzene rings are fused together at the ortho position is called ____________

18. The number or π-electrons in benzene is _____________

19. The method of reduction of the carbonyl group of ketone produced by Friedel -crafts acylation is ------------ reduction.

20. Solubility of branched isomers is __________ than that of straight chain isomers

21. Tautomers which differ from each other only in the location of a hydrogen atom and a double bond are called ____________

22. Inductive effect is a type of ____________ effect

23. Fused benzenoid hydrocarbon with three benzene rings is ________

24. Bleaching powder provides chlorine which oxidizes ethanol to _________.

25. Reduction of benzene using Nickel at 425-525K and 25atm yields __________

26. The definition of an acid as a proton donor was given by ________

27. In keto-enol tautomers, the tautomer that predominates is __________

28. The presence of an aromatic ring in a compound is detected by ____________

29. The E2 reactions of alkyl halides are favoured by the use of __________

30. The major product in the nitration of nitrobenzene is ____________

31. The effect arising from the spatial interactions between the groups in a compound is called _____________

32. The most widely used method for the preparation of alkyl halides is from __________

33. An example of Isolated Benzenoid Hydrocarbon is __________

34. In electrophilic addition to alkenes, the electrophilic attack is on __________

35. There are ---------- resonance structures of benzene

36. Branched chain hydrocarbons have lower __________ than their straight chain isomers.

37. Fused benzenoid hydrocarbons with two benzene rings is _________

38. Down the group, electronegativity

39. The types of geometric isomers are trans and __________

40. In terms of aromatization, naphthalene has ___________ π electrons

41. Cyclohexane has _______ fewer hydrogens than nhexane.

42. A change in molecular structure which affect the reactivity of the molecule by changing the electron distribution is called __________

43. The type of tautomerism which involves a shift in interatomic distance within a molecule, without the separation of any atom from the rest of the molecule , as an intermediate stage is called ____________

44. Hydrogenation of benzene at higher temperature and under pressure yields ________

45. Hydrogen no - bond resonance is otherwise called _____________

46. Oxidation of naphthalene under controlled condition yields ___________

47. For halogen derivatives of aromatic compounds, boiling point ---------- with increase in atomic size of the halogen atom.

48. The backbone of an organic molecule is __________

49. The process by which benzene and its derivatives are extracted from petroleum is called ___________

50. The parent compound of polynuclear hydrocarbons is ___________