Hi , 



There is only one solution to your problem .i.e. keep practising.  First try to understand the mechanism dat how reaction works, this will help u in remembering it and also will give u a better understanding of reactions than simple memorization.  


    jus follow the given ways to remember equations :
-  Write down the important equations on a chart and hang it in your bed room.

-  You can get number of copies of such charts placed at suitable places in your house.

-  Try to link the equations with some things which are important to you in your life and then remember them.

-  As soon as you get up in the morning  try to recap the important equations.

-   Reading a number of times will enhance your morale and your memory power.
Follow  that and i am sure it will help u. Basically,  do practise alot and u can remember any formulae, reactions everything.  
If you find any thing difficult to understand then post it here ...and we ll get u the answer asap. Here IITians are alwez there to help u. 


All the Best!!!
 
Regards
Askiitians Expert