General · PYQ NEET UG 2019(2)

When neutral or faintly alkaline \( \text{KMnO}_4 \) is treated with potassium iodide, iodide ion is converted into 'X'. 'X' is

1. \( \text{IO}^- \)
2. \( \text{I}_2 \)
3. \( \text{IO}_4^- \)
4. \( \text{IO}_3^- \)