Correct order of bond angles are in

Options

A. `ClO_2 lt Cl_2O lt ClO_2`
B. `Cl_2O lt ClO_2 lt ClO_2`
C. `ClO_2 lt Cl_2O lt ClO_2`
D. `Cl_2O lt Cl_2O lt ClO_2`

Answer

A

Explanation

In `ClO_2`, Cl is `sp^2` hybridised and bond angle is `118^@`. In `Cl_2O, Cl` is `sp^3` hybridised. However due to repulsion between two big sized Cl atoms the bond angle increases from `109^@-28'` to `111^@`
In `ClO_2^(-)`, Cl atom is `sp^3` hybridised but due to lp-lp repulsion, the angle decreases from `109^@.28'` to `103^@`