Best way to learn reactions mainly in organic chemistry is to understand the complete mechanism by which the reactions proceed. In case of any confusion with the reagent, you can recall to what reactant should you add. This you will only know if you have the knowledge of mechanism. Weekly revision is a must for all exams preparations.
The requirement for inorganic chemistry is cramming. You just have to remember what is oxidized/reduced to what and also how to balance reactions. Some reactions are really troublesome. For such reactions, you have to remember only some reagents. Hence, you will only be left with balancing.
Most of the reactions in inorganic chemistry follow the same structure, so it’s essential to understand what is going in any reaction as this can help you understand many other complex reactions. Start preparing right from the basics (“Acids donate protons, Bases receive protons” basic!) means that the knowledge you get will have a strong base and will thus stay confident while dealing with chemical reactions.
Sometimes you will need to mug up the temperature and concentration dependence of some reactions. Most of the times, you will find it spontaneous – especially if you’ve practiced enough!
Hence, understanding the inherent mechanism of any reaction will give you confidence and you will have an easier time remembering it.