When Chlorine gas (Cl₂) is bubbled through a solution of Potassium Iodide (KI), what observation is made?
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No change occurs.
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A white precipitate forms.
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The solution turns brown due to the formation of I₂.
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A gas with a pungent smell is evolved.
📝 Detailed explanation
Chlorine is more reactive than Iodine and displaces it from its salt: Cl₂ + 2KI → 2KCl + I₂. Dissolved iodine gives the solution a brown color.
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