The type of hybridisation of boron in diborane is

Boric acid is an acid because its molecule

Boron does not form $B^{3+}$ cation easily. It is due to

The structure of diborane $(B_2H_6)$ contains

Given below are the statements about diborane.
$(a)$ Diborane is prepared by the oxidation of $NaBH_{4}$ with $I_{2}$.
$(b)$ Each boron atom is in $sp^{2}$ hybridized state.
$(c)$ Diborane has one bridged $3$ centre$-2-$electron bond.
$(d)$ Diborane is a planar molecule.
The option with correct statement$(s)$ is :

Which of the following compounds are formed when boron trichloride is treated with water?