In which of the following species bond angle decreases when all CI are replaced by F-atoms.
`C Cl_(3)^(+), C Cl_(3)^(-), NCl_(3), CHCl_(3) (Cl - hatC -Cl), SiCl_(4) , BCl_(3)`

Answer

`0003`

Explanation

`C Cl_(3)^(+) = CF_(3)^(-)`
`C Cl_(3)^(+) = CF_(3)^(+)`
`(120^(@)) (~~ 109^(@))`
`NCl_(3) gt NF_(3)`
`CHCl_(3) gt CHF_(3)`
`SiCl_(4) = SiF_(4)`
`BCl_(3) = BF_(3)`