The deep colour produced when iodine is dissolved in a solution of potassium iodide is caused by the presence of :

I_{2}

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I^{-}

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I_{3}^{-}

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I_{2}^{-}

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Solution

The correct option is C $I_{3}^{-}$
$K I + I_{2} ⇌ K I_{3} \to K^{+} + I_{3}^{-}$
deep color
Thus $I_{3}^{-}$ ion is responsible for deep colour of the potassium iodide.

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The deep colour produced when iodine is dissolved in a solution of potassium iodide is caused by the presence of :

The correct option is C I−3KI+I2⇌KI3→K++I−3 deep colorThus I−3 ion is responsible for deep colour of the potassium iodide.

The correct option is C $I_{3}^{-}$
$K I + I_{2} ⇌ K I_{3} \to K^{+} + I_{3}^{-}$
deep color
Thus $I_{3}^{-}$ ion is responsible for deep colour of the potassium iodide.