Решите цепочку превращения 1) cac2-c2h2-c2h4-c2h4cl2 | hcoh 2)c2h5br-c4h10-ch2=ch~ch2~ch3-ch2=ch~ch=ch2-ch2cl-ch-ch=ch2cl

1) CaC2 + 2H2O> Ca(OH)2 + C2H2

C2H2+ H2> C2H4

C2H4 +Cl2> C2H4Cl2 

2) C2H5Br + 2Na + C2H5Br> C4H10 + 2NaBr

C4H10> C4H8 + H2

CH2=CH-CH2-CH3 > CH2=CH-CH=CH2 + H2

CH2=CH=CH-CH2 + Cl2> CH2Cl-CH=CH-CH2Cl