A.CH4、C2H4、C3H4任意体积比 |
B.CH4、C3H6、C2H2保持C3H6∶C2H2="1∶" 2(物质的量之比) |
C.C2H6、C4H6、C2H2同条件下体积比为2∶1∶1 |
D.C3H8、C4H8、C2H2质量比为11∶14∶26 |
气体 | CO | H2 | N2 | O2 |
体积(L) | 25 | 60 | 15 | 2.5 |
A.乙醇脱水 | B.石油分馏 |
C.煤干馏 | D.石油裂解 |
A.C9H12 | B.C17H20 | C.C20H30 | D.C12H20 |
A.CH4、C3H8 | B.CH4、C2H5OH | C.C4H6、C4H8 | D.CH3COOH、C3H8 |
A.α与β | B.β与γ | C.δ与γ | D.α与δ |
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