Why is the electrolytic dissociation represented by a reversible (⇌) sign?
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Solution
For reversible dissociation in a chemical equilibrium,
AB⇌A+B
the dissociation constant Ka is the ratio of dissociated to undissociated compound
Since dissociated species can be combined to form undissociated species driven by external effect, that is why electrolytic dissociation represented by a reversible (⇌) sign.