In diborane $(B_2H_6)$,the two $H-B-H$ bond angles are nearly

$A$ compound $X$,of boron reacts with $NH_3$ on heating to give another compound $Y$,which is called inorganic benzene. The compound $X$ can be prepared by treating $BF_3$ with lithium aluminium hydride. The compounds $X$ and $Y$ are represented by the formulas.

Aluminium is not used:

Which of the following processes will not yield anhydrous $AlCl_3$?

Which of the following is $NOT$ true regarding the structure of diborane $(B_2H_6)$?

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