In which transformation the change of hydridization and shape about underlined atom take place?

Options

A. `underset(-)(C)H_(3)CH_(3) to underset(-)(C)H_(3)^(-)+CH_(3)^(+)`
B. `NH_(3)+BF_(3) to [H_(3)N to BF_(3)]`
C. `H_(2)underset(-)(O)+H^(+) to H_(3)underset(-)O^(+)`
D. `underset(-)NH_(3) to underset(-)NH_(3)^(-)+H^(+)`

Answer

B

Explanation

`NH_(3)+underset(-)(B)F_(3) to [H_(3)N to BF_(3)] " or " H_(3)overset(o+)(N)-underset(-)overset(Theta)(B)F_(3)`
`ep=0" " ep=0`
`bp=3" " bp=4`
`"Plane Triangle"" " "Tetrahedral"`