qoI0809_alkynes - QOI 0809 alkynes Name ESSAY Write your...

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QOI 0809 alkynes Name___________________________________ ESSAY. Write your answer in the space provided or on a separate sheet of paper. 1) Give the IUPAC name for (CH 3 ) 2 C(CH 2 CH 3 )C uniE007 CCH(CH 3 ) 2 . 2) Give the IUPAC name for HC uniE007 CCH 2 CH 2 CH 3 . 3) Give the IUPAC name for CH 3 CH 2 C uniE007 CCH(OH)CH 3 . 4) Give the IUPAC name for CH 3 CH uniE005 CHCH uniE005 CHC uniE007 CCH 3 . 5) Give the IUPAC name for BrCH 2 CH 2 C uniE007 CCH 2 CH 3 . 6) Draw an acceptable structure for acetylene. 7) Draw an acceptable structure for 3 - sec - butylhept - 1 - yne. 8) Draw an acceptable structure for ( S ) - 5 - phenyloct - 2 - yne. 9) Draw an acceptable structure for hepta - 3,6 - dien - 1 - yne. 10)Draw an acceptable structure for hex - 2 - yne. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 11)How many distinct terminal alkynes exist with a molecular formula of C 5 H 8 ? A)1 B)2 C)3 D)4 E)5 11) 12)How many distinct internal alkynes exist with a molecular formula of C 6 H 10 ? 12) 13)The carbon - carbon triple bond of an alkyne is composed of __________. 13) 14)In trans - hept - 4 - en - 2 - yne the shortest carbon - carbon bond is between carbons __________. 14) 15)Which of the following improperly describes the physical properties of an alkyne? A)insoluble in most organic solvents B)nearly insoluble in water C)boiling point nearly the same as an alkane with similar carbon skeleton D)less dense than water E)relatively nonpolar 15) 1
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ESSAY. Write your answer in the space provided or on a separate sheet of paper. 16)How many moles of water are produced when one mole of propyne undergoes complete combustion? 17)Why are terminal alkynes more acidic then other hydrocarbons? 18)Provide the structure of the major organic product(s) in the reaction below. 19)Provide the structure of the major organic product(s) in the reaction sequence below. CH 3 CH 2 C uniE007 CH 1. NaNH 2 2. PhCH 2 Br MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 20)Which of the species below is less basic than acetylide? 20) ESSAY. Write your answer in the space provided or on a separate sheet of paper. 21)Describe a qualitative, nonspectroscopic means for distinguishing terminal alkynes from internal ones. 22)2 - Methylhex - 3 - yne can be prepared by the reaction of an alkynide with an alkyl halide. Does the better synthesis involve alkynide attack on bromoethane or on 2 - bromopropane? Explain your reasoning. 23)Provide the structure of the major organic product(s) in the reaction below. 24)Provide the structure of the major organic product(s) in the reaction below.
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