Consider the following statements for diborane
$1.$ Boron is approximately $sp^3$ hybridized
$2.$ $B-H-B$ angle is $180^o$
$3.$ There are two terminal $B-H$ bonds for each boron atom
$4.$ There are only $12$ bonding electrons available
Of these statements
$1,\, 3$ and $4$ are correct
$1,\, 2$ and $3$ are correct
$2,\, 3$ and $4$ are correct
$1,\, 2$ and $4$ are correct
Write reactions to justify amphoteric nature of aluminium.
$H_3BO_3$ is
In which of the following, a salt of the type $KMO_2$ is obtained?
The solubility of anhydrous $AlCl_3$ and hydrous $AlCl_3$ in diethyl ether are $S_1$ and $S_2$ respectively. Then
Describe the shapes of $BF $$_{3}$ and $BH _{4}^{-}$. Assign the hybridisation of boron in these species.