If molten sodium chloride is split by electrolysis, which reaction occurs at the anode? 2Cl2 (g) →2Cl− (l) + 2e−

2Cl− (l) →Cl2 (g) + 2e−

2Na (l) →2Na+ (l) + 2e−

2Na+ (l) + 2e−→2Na (l)

Explanation:

Electrolysis of a subastance is breaking it into its constituents by the action of electrical current.  

In the electrolysis of molten sodium chloride, sodium metal is produced at the cathode which is a negative electrode and chlorine gas produces as the anode which is a positive electrode.

At anode :

At cathode :