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