ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
CHM203
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1. The most widely used method for the preparation of alkyl halides is from __________
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2. The presence of an aromatic ring in a compound is detected by ____________
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3. The method of reduction of the carbonyl group of ketone produced by Friedel -crafts acylation is ------------ reduction.
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4. The extent to which acids transfer a proton to a standard base determines __________
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5. Sulphonation of benzene yields ___________
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6. Oxidation of naphthalene under controlled condition yields ___________
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7. In keto-enol tautomers, the tautomer that predominates is __________
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8. A change in molecular structure which affect the reactivity of the molecule by changing the electron distribution is called __________
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9. The reaction in which aryl halides are formed from aromatic amines is called _________
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10. Reduction of benzene using Nickel at 425-525K and 25atm yields __________
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11. In terms of steric effect _________ geometric isomer is more stable.
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12. Inductive effect is a type of ____________ effect
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13. Naphthalene has ________ number of resonance hybrid structures
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14. Fused benzenoid hydrocarbon with three benzene rings is ________
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15. Branched chain hydrocarbons have lower __________ than their straight chain isomers.
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16. The parent compound of polynuclear hydrocarbons is ___________
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17. In terms of steric effect _________ geometric isomer is more stable.
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18. For halogen derivatives of aromatic compounds, boiling point ---------- with increase in atomic size of the halogen atom.
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19. Hydrogen no - bond resonance is otherwise called _____________
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20. The types of geometric isomers are trans and __________
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21. Down the group, electronegativity
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22. The amount of substance dissolved in a certain amount of solvent is referred to as ___________
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23. Cyclohexane has _______ fewer hydrogens than nhexane.
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24. The influence of the inductive effect on acid strength is almost negligible after the __________ carbon in the chain.
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25. In terms of aromatization, naphthalene has ___________ π electrons
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26. The cannonical forms of benzene were proposed by _____________
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27. In electrophilic addition to alkenes, the electrophilic attack is on __________
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28. Hydrogenation of benzene at higher temperature and under pressure yields ________
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29. Fused benzenoid hydrocarbons with two benzene rings is _________
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30. The stronger an acid the ___________ is its conjugate base
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31. The definition of an acid as a proton donor was given by ________
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32. 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 ____________
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33. 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.
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34. The E2 reactions of alkyl halides are favoured by the use of __________
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35. Solubility of branched isomers is __________ than that of straight chain isomers
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36. Bleaching powder provides chlorine which oxidizes ethanol to _________.
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37. Tautomers which differ from each other only in the location of a hydrogen atom and a double bond are called ____________
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38. The backbone of an organic molecule is __________
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39. Two factors that affect the boiling point of a substance are ________ and _________
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40. 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.
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41. A side reaction that occurs during substitution reactions of alkyl halides is _________
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42. The method of reduction of the carbonyl group of ketone produced by Friedel - craft is __________
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43. Reduction of benzene is by __________ of benzene.
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44. The process by which benzene and its derivatives are extracted from petroleum is called ___________
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45. 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 ____________
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46. Unbranched isomer has higher _________ than branched isomer
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47. In terms of steric effect, conformational isomer is __________ more stable.
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48. The number or π-electrons in benzene is _____________
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49. A benzenoid hydrocarbon in which two benzene rings are fused together at the ortho position is called ____________
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50. There are ---------- resonance structures of benzene
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