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C3H8 + Cl2 --> C3H7Cl + HCl C3H7Cl + KOH --> C3H7OH + KCl C3H7OH + CuO --> C2H5CHO + Cu + H2O C2H5CHO + Ag2O --> C2H5COOH + 2Ag CH3-CH2-COOH + Cl2 --> CH3-CHCl-COOH + HCl CH3-CHCl-COOH + 2NH3 --> CH3-CH(NH2)-COOH + NH4Cl