How to know differences among these reactions?

Question

how to know differences among electrophilic substitution, electrophilic addition, nucleophilic substitution, nucleophilic addition, free radical addition and elimination reactions?

Answer 1

Go to this web site.  There will be an empty box in the middle of the left hand side of the page. Type in the reaction and press enter.  It will give you more info than you probably would ever want.  Then go back to the box and type in the next one.  If it doesn't have the answer, it gives you the option of using 5 or 6 other search engines (I find google to be the best) to find your answer:

http://en.wikipedia.org/wiki/Portal:Cont...