Proszę o pomoc: 1,2-dichloropropan + Zn   Etyn + HBr ->A A + HBr ->   eten + ... ->CH3-CH2-OH   C2H4 + Br2

[latex]CH_{2}Cl - CH_{2}Cl - CH_{3} + Zn ightarrow CH_{2} = CH - CH_{3} + ZnCl_{2}[/latex]   [latex]CHequiv CH + HBr ightarrow CH_{2} = CHBr[/latex]   [latex]CH_{2} = CHBr + HBr ightarrow CH_{2}Br + CH_{2}Br[/latex]   [latex]CH_{2} = CH_{2} + H_{2}O ightarrow CH_{3} - CH_{2}OH[/latex]   [latex]C_{2}H_{4} + Br_{2} ightarrow C_{2}H_{4}Br_{2}[/latex]