Page 9 - FPGEE Medicinal and Organic Chemistry Q&A Book
P. 9

Krisman




               14.     Which of the following arrangements
               lists  the  compounds  below  in  the  order  of
               decreasing the bond dissociation energy (high-
               energy first, least-energy last)?                 3.

               1.      CH
                          4

               2.      CH CH
                          3   3
               3.      CH CH CH
                          3   2   3
                                                                 4.

                             CH 3

               4.     CH     C   CH
                         3           3
                             CH
                                3
                                                                 a.     1 and 3
               a.      1 > 2 > 3 > 4                             b.     2 and 4
               b.      4 > 3 > 1 > 2                             c.     3 and 2
               c.      2 > 4 > 3 > 1                             d.     4 only
               d.      1 > 4 > 3 > 2
                                                                 16.  Which of the following compounds does
               15.     Which  of  the  following  compounds      NOT contain a chiral carbon?
               represents  a pair of diastereomers?
                                                                                    H

                                                                 1.           Cl          I

                                                                                    SO H
                                                                                       3
               1.
                                                                     (Chloroiodomethanesulfonic acid)


                                                                                     H

                                                                 2.      CH                CH
                                                                             3                 3
                                                                                    Cl
                                                                           Isopropyl chloride
               2.
                                                                                     H

                                                                 3.       CH               COOH
                                                                             3
                                                                                    OH

                                                                               (Lactic acid)





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