How do you get 2 master ball in pokemon gold?

YOU CANT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! i did but i think i got lucky.u know how meowth picks up stuff.when u face geovanni put ur meowth in the battle then take it out.finish the battle and take the iteam that mewoth is holding.hope i helped
You have to beat Giovanni at Silph Co. in Saffron City, and then the president gives you the master ball.