Write down the reaction equations: methane – acetylene – acetaldehyde. acetylene chloroethene – polyvinyl chloride

Let us write down the equations for the transformation chains:
1.CH4 – C2H2 – CH3 – SOH;
2CH4 = C2H2 + 3H2 – decomposition of methane, cracking is carried out in industry to obtain acetylene;
С2Н2 + Н2О = Н2С = СНОН (vinyl alcohol) = Н3С – СОН – hydration, acetaldehyde is formed.
2. С2Н2 + НCl = H2C = CHCl – addition, chloroethene (Chloroprene) is released;
nН2С = СНCl = (- H2C – CHCl -) n – polymerization, polyvinyl chloride (PVC) was obtained.
These processes show the connection of hydrocarbons, aldehydes with high molecular weight compounds, for example, acetylene and polyvinyl chloride.
The reaction products are of practical importance, for example, PVC is used in electrical engineering for the manufacture of wire sheaths.