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irina479065
@irina479065
October 2021
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Осуществить цепочку превращений: карбид кальция---ацетилен---этилен-----этанол----этилен
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Answers & Comments
VelariN
1) CaC2+2HOH—>C2H2+Ca(OH)2
2) C2H2+H2(t,Ni)—>CH2=CH2
3) CH2=CH2+HOH(t, H+)—>CH3-CH2-OH
4) CH3-CH2-OH(t>140, H2SO4)—> CH2=CH2+H2O
1 votes
Thanks 1
mariyayampolsk
1.
CaC2+2H2O=Ca(OH)2+C2H2
2.
C2H
2
+
H2
—>
C2H4 (
катализаторы
Ni
,
Pt
,
Pd…)
3.
CH2=CH2 + H2O → C2H5OH ( кислотная среда, t)
4.
C2H5OH -->C2H4 + H2O (при t>140 и в присутств. H2SO4)
1 votes
Thanks 2
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Answers & Comments
2) C2H2+H2(t,Ni)—>CH2=CH2
3) CH2=CH2+HOH(t, H+)—>CH3-CH2-OH
4) CH3-CH2-OH(t>140, H2SO4)—> CH2=CH2+H2O
1.CaC2+2H2O=Ca(OH)2+C2H2
2.C2H2 + H2 —> C2H4 (катализаторы Ni, Pt, Pd…)
3.CH2=CH2 + H2O → C2H5OH ( кислотная среда, t)
4.C2H5OH -->C2H4 + H2O (при t>140 и в присутств. H2SO4)