Which of the following is correct order of bond angle ?

Options

A. `H_(2) O gt OF_(2) gt SF_(2) gt H_(2)S`
B. `H_(2)Ogt SF_(2) gt OF_(2) gt H_(2) S`
C. `H_(2)O gt OF_(2) gt H_(2)S gt F_(2)S`
D. `H_(2)O gt H_(2) S gt OF_(2) SF_(2)`

Answer

A

Explanation

`H_(2)O` has more bond angle than `OF_(2)` due to Drago, rule. `OF_(2)` has greater bond angle than `SF_(2)` due to Drago rule, according to which, on moving top to bottom along a group, bond angle decreases.