2. The content of each chapter is related. Understand the content of organic chemistry first, and then learn the knowledge of organic chemistry in depth.
3. Alkanes are saturated hydrocarbons, while olefins are unsaturated and have double bonds. This is a good difference! Olefins can be converted into alkanes by hydrogenation reduction.
4. Study alkanes first, then olefins, and then bromination from these hydrocarbons to their derivatives, such as alkanes, or synthesis of other alcohols, ethers, aldehydes, acids and so on from these hydrocarbons.
The basic reaction must be memorized. In fact, as long as you remember the reaction representing a substance, it is equivalent to remembering the reaction of this hydrocarbon, and it doesn't take too much time to draw inferences, right?
6. There is also their characteristics. Every hydrocarbon has special properties. Do you often encounter the problem of identifying several alkanes or other substances? It is necessary to remember their nature. For example, olefins have unsaturated double bonds, which can make bromine water fade, and so on.
I hope it helps you! Ha ha!