环氧乙烷()可用于生产乙二醇。电化学合成环氧乙烷()的装置如图所示:
已知:
下列说法错误的是A.Pt电极接电源正极 |
B.制备1mol环氧乙烷,Ni电极区产生2molH2 |
C.Pt电极区的反应方程式为:CH2=CH2+Br2+H2O→HOCH2CH2Br |
D.电解完成后,将阳极区和阴极区溶液混合才可得到环氧乙烷 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2