Question

What are the products obtained in the electrolysis of molten nai?

Answer 1

Answer is: sodium (Na) and iodine (I₂).

First ionic bonds in this salt are separeted because of heat: 
NaI(l) → Na⁺(l) + I⁻(l).

Reaction of reduction at cathode(-): Na⁺(l) + e⁻ → Na(l) /×2.

2Na⁺(l) + 2e⁻ → 2Na(l).

Reaction of oxidation at anode(+): 2I⁻(l) → I₂(l) + 2e⁻.

The anode is positive and the cathode is negative.