Question

$I_2$ has less solubility in water, but its solubility increases on adding $KI$ in the solution. When $KI$ and $I_2$ react, then a species $X$ is formed and solubility of $I_2$ solution increases.

The geometry of the anionic part of $X$ is:

• A. Linear
• B. T-shape
• C. Pyramidal
• D. See-saw

Answer 1

The correct option is A Linear

When $KI$ and $I_2$ reacts, it forms $I_3^{-}$

$KI+I_2\to K^{+}+I_3^{-}$

So, the species $X$ formed is $I_3^{-}$.

It undergoes $s{p}^{3}d$ hybridization with linear geometry.

So, the correct answer is linear.