Answer:
A) HBr oxidized; HCl reduced
Explanation:
Chemical equation:
Cl₂ + 2HBr → 2HCl + Br₂
The given reaction is redox reaction because oxidation reduction take place.
Cl₂ is reduced from oxidation state 0 to -1 while HBr oxidized from -1 to 0.
Chlorine is oxidizing agent while HBr is reducing agent.
Oxidation:
Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.
Reduction:
Reduction involve the gain of electron and oxidation number is decreased.
Oxidizing agents:
Oxidizing agents oxidize the other elements and itself gets reduced.
Reducing agents:
Reducing agents reduced the other element are it self gets oxidized
