A Major Source of Chlorine Gas, Cl₂, Is from the Electrolysis

Multiple Choice

A major source of chlorine gas, Cl₂, is from the electrolysis of brine, which is concentrated salt water, NaCl (aq) . Which of the following is the balanced chemical reaction for this electrolysis reaction?

A) NaCl (aq) + H₂O → NaOH (aq) + Cl₂ (g) + H₂ (g)
B) 2 NaCl (aq) + H₂O → Na₂O (aq) + 2 HCl (aq)
C) 2 NaCl (aq) + 2 H₂O → 2 Na (s) + O₂ (g) + 2 H₂ (g) + Cl₂ (g)
D) 2 NaCl (aq) + H₂O → 2 NaH (aq) + Cl₂O^- (aq)