The correct shape and I-I-I bond angles respectively

Question:

The correct shape and I-I-I bond angles respectively in $\mathrm{I}_{3}^{-}$ion are :-

  1. Distorted trigonal planar; $135^{\circ}$ and $90^{\circ}$

  2. T-shaped; $180^{\circ}$ and $90^{\circ}$

  3. Trigonal planar; $120^{\circ}$

  4. Linear; $180^{\circ}$


Correct Option: 4,

Solution:

Shape : Linear, I-I-I Bond angle $\Rightarrow 180$

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