DẠNG III: CHUỖI PHẢN ỨNG: Viết phương trình phản ứng (dùng công thức cấu tạo thu gọn):
a. Natri axetat → Metan → Axetilen → Etilen → Etan → Etyl clorua → Etilen → Polietilen.
(1) CH3COONa + NaOH → CH4 + Na2CO3 |
(5) CH3CH3 + Cl2 → CH3CH2Cl + HCl |
(2) 2CH4 → CH≡CH + 3H2 |
(6) CH3CH2Cl +KOH → CH2=CH2 +KCl +H2O |
(3) CH≡CH + H2 → CH2=CH2 |
(7) n CH2=CH2 → – (–CH2 –CH 2–)n– |
(4) CH2=CH2 + H2 → CH3 –CH3 |
|
(1)Al4C3 + 12HCl → 4AlCl3 + 3CH4 |
(5) CH3 –CH2Cl + NaOH → CH3 –CH2OH + NaCl |
(2) 2CH4 → CH≡CH + 3H2 |
(6) CH3 –CH2OH → CH2=CH2 + H2O |
(3) CH≡CH + HCl → CH2=CHCl |
(7) CH2=CH2 + Br2 → CH2Br –CH2 Br |
(4) CH2=CHCl + H2 → CH3 –CH2Cl |
|
CH3 CH2 CH2 CH3 → CH2=CH –CH3 + CH4 |
CH2=CH2 + H2O → CH3CH2OH |
CH2=CH –CH3 + H2 → CH3 CH2 CH3 |
CH3CH2OH → CH2=CH2 + H2O |
CH3 CH2 CH3 → CH2=CH2 + CH4 |
3CH2=CH2 + 2KMnO4 + 4H2O → 3CH2OH –CH2OH + 2MnO2 + 2KOH. |
(1) CH3COONa + NaOH → CH4 + Na2CO3 |
(4) CH2=CH2 + H2O → CH3CH2OH |
(2) 2CH4 → CH≡CH + 3H2 |
(5) 2CH3CH2OH → CH2 =CH – CH =CH2 + H2O + 2H2. |
(3) CH≡CH + H2 → CH2=CH2 |
(6) n CH2 =CH
– CH =CH2 → –(–CH2 –CH =CH –CH2–)n– |
e. Đá vôi → canxi oxit → canxi cacbua → axetilen → vinylaxetilen → cloropren → caosu cloropren.
(1) CaCO3 → CaO + CO2 |
(4) 2CH≡CH → CH2 =CH –C≡CH |
(2) CaO + 3C → CaC2 + CO |
(5) CH2 =CH –C≡CH + HCl → CH2 =CH –CCl =CH2. |
(3) CaC2 + 2H2O → Ca(OH)2 + CH≡CH. |
(6) n CH2 =CH –CCl =CH2 → –(– CH2 –CH =CCl –CH2–)n– |
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