Lugol's solution contains which element?

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Multiple Choice

Lugol's solution contains which element?

Explanation:
The key idea is that Lugol's solution is an iodine solution. It’s formed by dissolving elemental iodine (I2) in water with potassium iodide, which helps iodine dissolve by forming the triiodide species (I3−). The element you’re being asked about is iodine, not chlorine, iron, or hydrogen. The presence of iodine gives the solution its characteristic color and antiseptic properties, while iodide mainly aids dissolution.

The key idea is that Lugol's solution is an iodine solution. It’s formed by dissolving elemental iodine (I2) in water with potassium iodide, which helps iodine dissolve by forming the triiodide species (I3−). The element you’re being asked about is iodine, not chlorine, iron, or hydrogen. The presence of iodine gives the solution its characteristic color and antiseptic properties, while iodide mainly aids dissolution.

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