how can we determine that which product is formed by which type of reaction as;

which of the method A B C D OR E IS GENERALLY USED FOR PREPARING THR CLORIDES LISTED BELOW FROM 1 TO 5 :

A - ACTION OF AN ACID ON A METAL ( B ) ACTION OF AN ACID ON AN OXIDE OR CARBONATE

( C ) DIRECT COMBINATION ( D ) NEUTRALISING OF AN ALKALI BY AN ACID ( E ) PERCIPITATION

( 1 )COPPER CLORIODE (2) IRON 2 CLORIDE ( 3 ) IRON 3 CLORIDE (4 ) LEAD 2 CLORIDE (5) NACL

EACH METOD IS TO BE USED ONCE