Ch3 ch2cl получить ch2 ch2. Ch2 ch ch2 c c ch3+hcl. ch-c-(ch3)=ch-ch3+hcl. ch2=ch2-ch3 hcl. h2c ch2 hcl.

Ch3 ch2cl получить ch2 ch2. Ch2 ch ch2 c c ch3+hcl. ch-c-(ch3)=ch-ch3+hcl. ch2=ch2-ch3 hcl. h2c ch2 hcl.
62 / 78