1)Ch3Cl->ch3oh->hcho->hcooc2h5->hcooc2h5
2)Ch3cooh->c2h5oh->c2h4->ch2-ch2
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1)

1. CH3Cl + H2O = CH3OH + HCl

2. CH3OH + CuO = HCOH + Cu + H2O

3. HCOH + Ag2O = HCOOH + 2Ag

HCOOH + C2H5OH = HCOOC2H5 + H2O

2)

1. CH3COOH + 2H2 =(Pt) C2H5OH + H2O

2. C2H5OH =(t°) C2H4 + H2O

3. nC2H4 = (-CH2-CH2)n.