Tincture of iodine is:

Tincture of iodine is:

a solution of iodine in alcohol only.
a solution of iodine in water only.
a solution of iodine in alcohol and water.
iodine.
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UPSC Geoscientist – 2021
Tincture of iodine is a solution of iodine in a solvent that includes alcohol (typically ethanol) and water. It is commonly used as an antiseptic. Sometimes, potassium iodide or sodium iodide is also added to increase the solubility of iodine in the solvent.
Tincture of iodine is a solution of iodine, commonly dissolved in a mixture of alcohol (ethanol) and water.
The term “tincture” generally refers to a medicine made by dissolving a drug in alcohol. While historically some tinctures were purely alcoholic, modern tinctures, especially antiseptic ones like iodine, often use a mixture of alcohol and water.