Answer :
The reaction is:
Cl2(aq) + 2Br-(aq) --> 2Cl-(aq) + Br2(aq)
The oxidizing agent is the one that is being reduced which is chlorine where the charge changed from neutral to -1 while the reducing agent
is the one being oxidized which is bromine where the charge change from -1 to a neutral charge.
Answer:
The answer is C:
Chlorine (Cl) is the oxidizing agent because it gains an electron