CaC2 +H2O.................... C2H2 +Ca(OH)2
C2H2 + H2O ....................CH3CHO.......[O] ............. CH3COOH
CH3COOH + NaOH .................CH3COONa + H2O
CH3COONa +NaOH .........CaO........ CH4 + Na2CO3
CH4 + Cl2..................CH3Cl + HCl
و بعدين تكمل
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