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JAMB Chemistry 2017 Paper

Question : 5

Total: 49

The tincture of iodine means iodine dissolved in

Solution:

Concept:

A tincture is a solution where the solvent is alcohol.

Explanation:

Tincture of iodine is a common antiseptic solution.

It is prepared by dissolving iodine in ethanol (

\mathrm{C_2H_5OH}

Tinctures are specifically defined as alcoholic solutions.

Therefore, the solvent is ethanol, not water or other reagents.

Answer:

A. ethanol

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