CHEMISTRY SAMPLE MIDTERM EXAMINATION - SUMMER 2016
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1 EMISTRY SMPLE MITERM EXMITI - SUMMER 2016 ame: Multiple choice. hoose the EST answer from the choices which are given and write the letter of you choice on the answer sheet which is provided. ll questions are equally weighted and there is no penalty for guessing. Please indicate any question for which you feel there is no correct answer or more than one correct answer with an *. 1. Which of the following structures IS T consistent with the normal rules of bonding for molecules with uncharged atoms? 3 3. r Which of the following is a RRET structural formula for a compound with the condensed structural formula F 2 2 r 2?. r. F F r r r. r. r F F r r 3. escribe the relationship between the following two compounds and The formulas represent the same compound.. The formulas represent constitutional isomers. The formulas represent geometric isomers. The formulas represent unrelated compounds
2 4. hoose the correct IUP name for the following compound.. 1-methyl-2-isopropyl-3-chloropentane. 3-chloro-4,5-dimethylhexane. 2,3-dimethyl-3-chlorohexane. 4-chloro-2,3-dimethylhexane l escribe the relationship between the following two compounds and The formulas represent the same compound.. The formulas represent constitutional isomers. The formulas represent geometric isomers. The formulas represent unrelated compounds 6. Which of the following has the IGEST melting point? al. 4. I 4 7. What are the bond angles around the carbons in an alkane?. 180 o. 120 o o. 90 o 8. What are the bond angles around the double bonded carbon in an alkene?. 180 o. 120 o o. 90 o 9. For the complete combustion of cycloheptene (equation given below) what will be the correct coefficient for XYGE? > Which is a possible molecular formula for a compound with a triple bond? r
3 11 What is the correct IUP name for the following compound?. 3,3,3,4-tetramethyl-1-pentene. 2-methyl-3-isopropyl-4-pentene. 3-t-butyl-4-methyl-1-pentene. 3-isopropyl-4,4,-dimethyl-1-pentene 12. What is the correct IUP name for the following compound?. 5-bromo-2-isopropyl-4-methyl heptane. 2-bromo-3,5,6-trimethyl heptane. 6-bromo-2,3,5-trimethyl heptane. 2-bromo-3,5-dimethyl isooctane r 13. hoose the MJR RGI PRUT for the following reaction i catalyst The reaction in question #13 would be classified as a. YRTI. YRGETI. EYRTI. EYRGETI
4 15. Which of the following would have the LWEST ILIG PIT? The structural formula for an important anesthetic is Which of the following is a ketone? Which of the following is an ester? ow many isomeric ethers exist with the molecular formula 4 10?
5 20. What is the correct name for the following compound?. 2-chloro-1-ethyl-4-methyl cyclohexene. 5-chloro-4-ethyl-1-methyl 3-cyclohexene. 6-chloro-1-ethyl-4-methyl cyclohexene. 2-chloro-1-ethyl-4-methyl benzene 21. The product of the following reaction is a(n) l excess KMn ether. aldehyde. ketone. carboxylic acid 22. The reaction in question #21 would be classified as a(n). YRTI. YRGETI. XITI. REUTI 23. Which of the following compounds could exhibit cis/trans isomerism? (I) (II) (III) (IV) I and II only. II and III only I and IV only. one of the compounds 24. Which compounds are constitutional isomers? (I) (II) (III). I and II only. II and III only I and III only. one are constitutional isomers
6 25. ow many constitutional isomers are possible with the formula 4 8 r 2?. three (3). five (5). seven (7). nine (9) 26. Which of the following is a tertiary alcohol and cannot be easily oxidized? Which compounds are capable of hydrogen bonding with WTER? (I) (II) (III). I and II only. II and III only I and III only. I, II, and III 28. Which of the following is an amide? l a What is the correct name for this compound?. 4-octanone. 4-octanol. butyl butanoate. dibutyl ether
7 30. three carbon compound undergoes the following transformation: This reaction could represent: The reaction of propanol to yield dipropyl ether. The reaction of propanal to yield hexanoic acid. The reaction of propane to yield hexanal. The reaction of methyl propyl ether to yield hexanone 31. Which statement in T TRUE?. cetaldehyde is the simplest aldehyde.. cetone is the simplest ketone.. Some phenols are added to foods as antioxidants.. Esters are responsible for the distinct odors of some fruits. 32. hoose the correct systematic name for. ethyl-4-methylbutanoate. 6-methyl-4-heptanone. isobutylpropanoate. ethyl-4-methylpentanoate hoose the correct systematic name for. isobutyl ammonium chloride. chloro dimethylethylamine. ethyl dimethyl ammonium chloride. diethyl ammonium chloride l 34. Which of the following could cause irritation from an ant bite? Which of the following is present in certain antiseptic mixtures?
8 36. hoose the compound which IS T a final product in the following reaction. a, 2, heat 2 organic products a This compound has the following functional groups:. ketone, alkene, carboxylic acid, aldehyde. alkyne, ester, carboxylic acid, alcohol. alkyne, alkene, ketone, ester. ester, aldehyde, carboxylic acid, alkyne What are the products of combustion of 2,3-dimethyl-octane?. 2,3-octadione and hydrogen gas. a variety of small hydrocarbons. carbon dioxide and water. 2-octene, ethane, and water 39. hoose the correct description of the following compound:. The compound is aliphatic and saturated.. The compound is aromatic and unsaturated.. The compound is aromatic and saturated.. The compound is aliphatic and unsaturated Polyesters used in clothing are.. addition polymers. condensation polymers. naturally occurring polymers. all of the above 41. hoose the compound which is the STRGEST I. phenol. water. acetic acid. hydrochloric acid
9 42. What is the molecular formula for 3-methyl-2-pentanone? hoose the compound with the IGEST ILIG PIT hoose the organic product of the following condensation reaction What are the real bond angles, in degrees, around the indicated atoms
10 46. Which of the following is an amino acid? Which of the following is a carbohydrate? Which of the following is a lipid? Which of the following is an alpha amino acid? Which of the following compounds contains a chiral carbon? oth and contain a chiral carbon. 3 2
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