In the electrolysis of molten NaBr, the product forms at the cathode sodium (Na).
First ionic bonds in this salt are separeted because of heat:
NaBr(aq) → Na⁺(aq) + Br⁻(aq).
Reaction of reduction at cathode(-):
2 Na⁺(aq) + 2e⁻ → 2Na(aq)
Reaction of oxidation at anode(+):
2Br⁻(aq) → Br₂(aq) + 2e⁻.
The anode is positive and the cathode is negative.
In molten state ⇒ ions can move freely
Anions move towards the anode (oxidation site)
Cations move towards the cathode (reduction site)
So electrolysis extract electron from and force electron onto
In chemistry, the type of process in which decomposition of a chemical substance occurs due to the flow of electricity through the substance is generally known as the electrolysis process. Usually, the electrolysis process becomes in an arrangement in which one electrode of the cathode and one electrode of the anode are present.
In chemistry and production, electrolysis is a technique that makes use of direct electric present-day (DC) to power an otherwise non-spontaneous chemical response.
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