In which of the following molecules / ions `BF_(3), NO_(2)^(-), H_(2)` the central atom is `sp^(2)` hybridised ?

Options

A. `NH_(2)^(-)" and "H_(2)O`
B. `NO_(2)^(-)" and "H_(2)O`
C. `BF_(3)" and "NO_(2)^(-)`
D. `BF_(3)" and "NH_(2)^(-)`

Answer

c

Explanation

`NO_(2)^(-)` and `BF_(3)` has `sp^(2)` hybridisation whereas `H_(2)O` has `sp^(3)` hybridisation due to the presence of 2 bonds and 2 lone pairs.