Viewing: Number these events from 1-4 in the order they happened.[img=477x327]1803de18453944c.png[/img]
A: 1
B: 2
C: 3
D: 4
A: 1
B: 2
C: 3
D: 4
举一反三
- 下列碳正离子稳定性顺序应是( )。(1)[img=55x29]17e0abbe7d0cf4b.png[/img] (2)[img=124x28]17e0abbe86207a6.png[/img] (3)[img=51x28]17e0abbe8f27381.png[/img] (4)[img=61x28]17e0abbe989993f.png[/img] A: (3)>;(4)>;(1)>;(2) B: (4)>;(3)>;(1)>;(2) C: (3)>;(4)>;(2)>;(1) D: (1)>;(4)>;(3)>;(2)
- 下列化合物发生消去反应活性顺序是( )。(1)[img=68x22]17da6fc510f381b.png[/img] (2)[img=69x22]17da6fc521ce86c.png[/img] (3)[img=80x18]17da6fc53238d27.png[/img] (4)[img=97x18]17da6fc54228f3d.png[/img] A: (2) > (1) > (4) > (3) B: (2) > (1) > (3) > (4) C: (1) > (2) > (3) > (4) D: (1) > (2) > (4) > (3)
- The number of redundant constraints in the system is ()[img=302x298]1803a03a986d743.png[/img] A: 1 B: 2 C: 3 D: 4
- 下列化合物与NaCN发生反应(SN2)的速度快慢次序( )。(1) [img=79x64]17da6fd5a1d97eb.png[/img] (2) [img=262x38]17da6fd5b576813.png[/img] (3)[img=36x18]17da6fd5ccbc7d3.png[/img] (4)[img=87x59]17da6fd5ed269d9.png[/img] A: (2)>(3)>(1)>(4) B: (1)>(4)>(2)>(3) C: (2)>(4)>(1)>(3) D: (1)>(2)>(3)>(4)
- 下列化合物与NaCN发生反应(SN2)的速度快慢次序( )。(1)[img=79x64]17e0a99ef923fa1.png[/img](2)[img=171x25]17e0a99f044e7db.png[/img](3)[img=48x24]17e0a99f0e1e99a.png[/img](4)[img=87x59]17e0a99f1762202.png[/img] A: (1)>;(2)>;(3)>;(4) B: (1)>;(4)>;(2)>;(3) C: (2)>;(3)>;(1)>;(4) D: (2)>;(4)>;(1)>;(3)