Make up the reaction equation: 1) chloroethane – ethanol – ethanal 2) ethylene – ethanol – chloroethane

Let us write down the reaction equations for organic substances:
1. С2Н5Cl + KOH = C2H5OH + KCl – exchange reaction, ethanol is released;
С2Н5ОН + CuO = C2H4O + Cu – oxidation, ethanal was obtained;
2. Н2С = СН2 + Н2О = Н3С – СН2 – ОН – hydration, ethanol was formed;
Н3С – СН2 – ОН = Н2О + Н2С = СН2 – dehydration, ethylene was obtained;
Н2С = СН2 + НCl = H3C – CH2Cl – addition, chloroethane is released.
Reaction products are of practical importance. Ethanol, chloroethane are used as solvents. Ethylene and ethanal for the synthesis of ethanic acid. These reactions confirm the connection of alcohols, aldehydes, alkenes.