At the same time, {HEAD ~ chlorine} is liberated at {TAIL ~ the anode}, which is used for additional oxidation of the chloride of a metal 
is liberated at
At the same time , { HEAD ~ chlorine } is liberated at { TAIL ~ the anode } , which is used for additional oxidation of the chloride of a metal
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH