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                                                         O

                                  Cu                 //

1)2CH3OH  + O2 -------- 2 H - C             +   2H2O

                                                        \

                                                         H

2)

            O                                                                                 O

          //                           t,аммиачный раствор               //

 H - C           + Ag2O  ----------------------------------    H - C            + 2Ag (осадок)

          \                                                                                   \

           H                                                                                 OH

3) 2HCOOH + 2K = 2HCOOK + H2