the ion of which element will migrate towards cathode during electrolysis
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The formation of uncharged atoms from ions is called discharging. The energy required to cause the ions to migrate to the electrodes, and the energy to cause the change in ionic state, is provided by the external source.
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When any electrical current is applied Postive ions migrate to cathode , while negative ions migrate to anode.
Cathode
A cathode is the metallic electrode through which current flows out in a polarized electrical device.
During charge, the positive electrode is an anode, and the negative electrode is a cathode.
Anode
The Anode is the negative or reducing electrode that releases electrons to the external circuit and oxidizes during and electrochemical reaction.
Postive ions are called cations.
Negative ions are called anions.
- Hydrogen ions from the water, and positive ions from the compound.
- Hydroxide ions from the water, and negative ions from the compound.
- The ions compete at each electrode to gain or lose electrons.
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