Dont worry boy. Organic Chemistry is the easiest topic in che. U can crack in.it.
Dont worry abt 12th board exam.
Mainly they will ask to write only named reaction and easiest 2 step conversion.
To remember the reacton,first u should know about 5 effects thoroughly which would be taught in grade 11.
then learn and understand the reaction.
In jee mains
they will ask organic che. order of stability,acidic,basic mainly then after conversion.
In conversion question u have to see the reageents.
then to remember the reaction named. u should write those in different color pens for each reaction. so it is easy to remember.