Question

Number of bond pairs (X) and lone pairs (Y) around the central atom in the $I_3^{-}$ ion are

• A. $X-2,Y-2$
• B. $X-2,Y-3$
• C. $X-3,Y-2$
• D. $X-4,Y-3$

Answer 1

The correct option is B $X-2,Y-3$

Explanation:

Molecular geometry of $I_3^{-}$ is linear. In this there are three Iodine atoms, one of the atoms has a negative charge which further gives 3 lone pairs of electrons and 2 bond pairs

From the structure it is clear that there are $3$ lone pairs and $2$ bond pairs. Option B is correct answer