WAEC GCE Chemistry Obj And Essay/Theory Questions and Answer – NOV/DEC 2017 Expo Runz. CHEMISTRY ANSWERS===================CHEMISTRY OBJ:1-10 CADADCBABD11-20 BACCBBAABC21-30 DCACABABAC31-40 DDBDADBBDA41-50 BADCDBDBBC5a)chlorine/ammonia/hydrogen-chloride gas/carbon(II) oxide/sulphur(IV)oxide/nitrogen(IV) ...