Write the reaction equation: methane → chloromethane → methanol → formaldehyde → methanol.

CH4 + Cl2 => CH3Cl + HCl;
CH3Cl + KOH => CH3OH + KCl;
CH3OH + CuO => HCHO + Cu + H2O;
HCHO + Ag2O => HCOOH + 2Ag.



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