Which one of the following conversions involve change in both hybridisation and shape?

Options

A. `CH_(4)to C_(2)H_(6)`
B. `NH_(3) to NH_(4)^(+)`
C. `BF_(3) to BF_(4)^(-)`
D. `H_(2) O to H_(3) O `

Answer

C

Explanation

`{:("Compound/ion","Hybridisation","Shape"),(CH_(4),sp^(3),"Tetrahedral"),(C_(2)H_(6),sp^(3),"Tetrahedral"),(NH_(3) ,sp^(3),"Trigonal"),(, , "Pyramidal"),(NH_(4)^(-),sp^(3),"Tetrahedral"),(NH_(4)^(+),sp^(3),"Tetrahedral"),(BF_(3),sp^(2),"Triangular"),(, , "planar"),(BF_(4)^(-),sp^(3),"Tetrahedral"),(H_(2)O, sp^(3), "V-shaped"),(H_(3)O^(+),sp^(3), "Trigonal"),(, ,"pyramidal"):}`