The correct statement among the following is/are

Options

A. The `B-F` bond length of `BF_(3)` is smaller than the `B-F` bond length of `BF_(4)^(-)`
B. Diborane on hydrolysis forms `H_(3)BO_(3)`
C. Borazine on hydrolysis produces `N_(3)H`
D. In `TII_(3)` oxidation state of `TI` is `+3`

Answer

A, B

Explanation

`B-F` bond in `BF_(3)` is smaller due to `Ppi-Ppi` back bonding.
`B_(3)N_(3)H_(6)+9H_(2)Oto3NH_(3)+3H_(3)BO_(3)+3H_(2)`
In `Tll_(3)` oxidation state of `Tl` is `+1`