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Why is concentrated H2SO4 not a good choice for reacting with solid KI to produce HI?

1. Iodide ions are converted into iodine molecules.
2. The resulting product is mixed with sulfur-containing impurities.
3. Both HI and H2SO4 are classified as strong acids.
4. While H2SO4 is a strong acid, HI is considered a weak acid.

Correct answer: Iodide ions are converted into iodine molecules.

Solution

Concentrated H₂SO₄ is not a good choice for reacting with solid KI to produce HI because the strong oxidizing properties of H₂SO₄ cause the iodide ions to be converted into iodine molecules, rather than forming the desired HI product.

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