| 1. | The alkanes are generally inert to ionic reagents .
烷烃一般说来对离子型试剂是不活泼的。 |
| 2. | The alkanes are non-polar .
烷是非极性的。 |
| 3. | A hydrocarbon was known to be either an alkene or alkane .
某碳氢化合物已知可能是烯烃或是烷烃。 |
| 4. | The general uses of alkanes may be divided into three categories .
烷的一般用途可分为三个方面。 |
| 5. | Alkanes are resistant to attack by oxidizing agents generally .
烷烃一般对于氧化剂的作用是稳定的。 |
| 6. | The straight-chain alkanes exacerbate the problem of engine "knock" .
直链烷烃使机器的“爆震”问题更加严重。 |
| 7. | the alkanes form a homologous series of general formula h.
烷形成是有通式H的同系列。 |
| 8. | The gradation in the physical properties of the alkanes is typical of a homologous series .
烷烃物理性质的逐渐变化是同系列的特点。 |
| 9. | Alkanes can be chlorinated or brominated by treatment with chlorine or bromine in the presence of visible or uv light .
烷在可见光或紫外光照射下，用氯或溴处理才能氯化或溴化。 |
| 10. | Alkanes can be chlorinated or brominated by treatment with chlorine or bromine in the presence of visible or uv light .
烷在可见光或紫外光的照射下，用氯或溴处理能氯化或溴化。 |
