(5)(5分)浓HNO3,浓H2SO4Pd/C.H2.NH250-60℃HCOOCH CH.CHON0NI-CI-CI-8 CHOHCu/O2,CH3-C-CH3CH3-CH-CH3△16.(16分)(1)Cu2++Cu+4C1=2CuC2(2分)●