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w_CO_all - Exam Name MULTIPLE CHOICE Choose the one...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following correctly describes the bond angle and hybridizations present in formaldehyde? A) C, sp 2 ; O, sp 2 ; HCO, ~ 120° B) C, sp 3 ; O, sp 3 ; HCO, ~ 109.5° C) C, sp 2 ; O, sp 3 ; HCO, ~ 120° D) C, sp 2 ; O, sp 2 ; HCO, ~ 109.5° E) C, sp 3 ; O, sp 2 ; HCO, ~ 109.5° 1) ESSAY. Write your answer in the space provided or on a separate sheet of paper. 2) Would you expect the carbonyl carbon of benzaldehyde to be more or less electrophilic than that of acetaldehyde? Explain using resonance structures. 3) Provide the proper IUPAC name for (CH 3 ) 2 CHCH 2 CH 2 COCH uniE005 CH 2 . 4) Provide the proper IUPAC name for PhCH 2 CH(CH 3 )CH 2 CH 2 CHO. 5) Provide the proper IUPAC name for CH 3 CHOHCH 2 COCH 2 C(CH 3 ) 2 CH 2 CH 3 . 6) Provide the proper IUPAC name for CH 3 OCH 2 CH 2 CH(CH 3 )CHO. 7) Provide the proper IUPAC name for CH 3 CHBrCH 2 COCH 2 CHO. 8) Provide the structure of benzophenone. 9) Provide the structure of cyclohexanone oxime. 10) Provide the structure of the diethyl acetal of butanal. 11) Which is more soluble in water, 2 - butanone or n - hexane? Explain. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 12) Which of the following represents the correct ranking in terms of increasing boiling point? A) n - butane < 2 - butanone < diethyl ether < 1 - butanol B) 2 - butanone < n - butane < diethyl ether < 1 - butanol C) n - butane < diethyl ether < 2 - butanone < 1 - butanol D) n - butane < diethyl ether < 1 - butanol < 2 - butanone E) n - butane < 1 - butanol < diethyl ether < 2 - butanone 12) SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 13) Provide the structure of the semicarbazone derivative of 3 - pentanone. 13) 1
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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 14) Which compound will show an intense peak in the mass spectrum at m/z 58? 14) 15) In the mass spectrum of 3,3 - dimethyl - 2 - butanone, the base peak will occur at m/z : 15) ESSAY. Write your answer in the space provided or on a separate sheet of paper. 16) How might one distinguish an aldehyde from a ketone using IR data alone? MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 17) When a carbonyl is part of a conjugated π - network, the C uniE005 O stretch: 17)
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