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Chemistry · PYQ NEET UG 2017
हिन्दी\( \text{HgCl}_2 \) and \( \text{I}_2 \) both when dissolved in water containing \( \text{I}^- \) ions the pair of species formed is:
Correct answer · Option 2
\( \text{HgI}_4^{2-}, \text{I}_3^- \)
Explanation
\( \text{HgCl}_2 \) reacts with \( \text{I}^- \) to form complex \( \text{HgI}_4^{2-} \), and \( \text{I}_2 \) dissolves in \( \text{I}^- \) to form polyiodide ion \( \text{I}_3^- \).
