The correct order of increasing bond angles in the following species is

Options

A. `CIO_(2)^(-) lt Cl_(2)O lt ClO_(2)`
B. `Cl_(2)O lt ClO_(2) lt ClO_(2)^(-)`
C. `ClO_(2) lt Cl_(2)O lt ClO_(2)^(-)`
D. `Cl_(2)O lt ClO_(2)^(-) lt ClO_(2)`

Answer

A

Explanation

In `ClO_(2), Cl is sp^(2)` -hybridized and the bond angle
is `180^(@)` . In `Cl_(2)O,O is sp^(3)` -hybridized . However ,
due to repulsions between two big sized Cl atoms,
the bond angle increases from `109.5^(@)` to `111^(@)` . In
`ClO_(2)^(-) ,Cl` atom is `sp^(3)`-hybridized but due to
lp-bp repulsions, the angle decreases from `109.5^(@)`
to `103^(@)` . Thus, the increasing order of bond angles
is `ClO_(2)^(-) lt Cl_(2)O lt ClO_(2)`.