Question

explain why tinture of iodine is consirded as mixture whwre as iodine is consirded as element ...​

Answer 1

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Reaction with Hydrogen. All the halogens react directly with hydrogen, forming covalent bonds and—at sufficient levels of purity—colorless gases at room temperature. Hydrogen reacts with fluorine, chlorine, bromine, and iodine, forming HF, HCl, HBr, and HI, respectively.

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Answer 2

Tincture of iodine, iodine tincture, or weak iodine solution is an antiseptic. It is usually 2–7% elemental iodine, along with potassium iodide or sodium iodide, dissolved in a mixture of ethanol and water. Tincture solutions are characterized by the presence of alcohol. It was used from 1908 in pre-operative skin preparation by surgeon Antonio Grossich.

But iodine is an element.

Thus, iodine is considered as element but tincture of iodineis considered mixture.